TOPAS
​For over 30 years, particle analysis and sensor systems under the Topas brand have been developed, designed, and manufactured to meet technology-driven demands. These systems are applied in the generation, conditioning, and analysis of test and reference aerosols. With a portfolio that includes over 60 standard devices and 20 testing systems, Topas—a medium-sized company based in Saxony—has established a strong reputation worldwide. Its devices are widely used for filter and filter media classification and testing, supporting both industrial applications and foundational research for decades.
Aerosol Generation:
Conditioning:
​
​
Aerosol Generation:
Conditioning:
Conditioning:
-
Ultrasonic Disintegrator UDS 751
Data Analysis:
Condensation Fog Generator CFG 291
The mobile fog generator CFG 291 is designed for generating highly visible, stationary fog to visualize airflows. It features an optimized fluid guidance system and a specially developed evaporator, combining the compact design of the previous CFG 290 model with improved performance. The device is primarily used for the initial acceptance and routine inspections of cleanroom systems according to ISO 14644 and VDI 2083-3 standards. It assists in detecting leaks in transition areas, verifying laminar displacement flow, and visualizing cleanroom overpressure levels.
​
The CFG 291 is applicable for airflow visualization in rooms, standard-compliant cleanroom inspections, visual leak testing of enclosed areas, and function testing of various sensors, including smoke detectors and particulate matter sensors. Key features include operation in multiple orientations with a hermetically sealed fluid tank, nearly continuous operation using replaceable batteries, easy on-site replacement of the evaporator cartridge, and low-impulse fog dispersion via a specialized discharge probe. These capabilities make it an effective tool for ensuring cleanroom integrity and performance.
FCS 249 Field Calibration System
The FCS 249 is a mobile system designed for generating defined reference and test aerosols, allowing precise variation of particle number concentration over a wide working range. It is particularly suitable for validating condensation particle counters (CPCs) and electrical aerosol monitors used in vehicle exhaust particle number concentration measurements, following the German exhaust emission test equipment calibration guideline (AU-Geräte Kalibrierrichtlinie).
​
This system is ideal for calibrating and validating aerosol measurement devices, conducting comparative measurements for periodic technical inspections (PTI) of vehicles, and validating portable emission measurement systems (PEMS) for real-world exhaust gas testing.
The FCS 249 meets all NaCl test aerosol requirements and is a fully portable system that does not require compressed air but does need a power supply. It is designed for use in harsh workshop conditions and supports low-concentration NaCl solutions for commercial applications. Additional features include reactionless aerosol sampling, a touch screen interface with seven adjustable particle concentration points and trim function, making it a reliable and versatile tool for precise aerosol validation.
Atomizer Aerosol Generator ATM 210
The ATM 210 aerosol generator is designed for producing aerosols with precise properties in accordance with VDI 3491 guidelines. This model is specifically engineered for aerosol generation into pressurized vessels, supporting pressures up to 10 bar. It ensures a highly stable particle size distribution, high reproducibility, and a significant aerosol output.
​
The generator is compatible with various liquids, such as DEHS or PAO (Emery 3004), and can also disperse PSL reference materials. It operates with an external pressurized air supply, featuring a pressure reducer and manometer for easy and safe operation. The liquid reservoir is integrated into the chassis, and for safety, a protection valve is installed. All fluid components are certified for pressures up to 20 bar.
​
Key advantages of the ATM 210 include its ability to generate polydisperse aerosols primarily below 1 μm, excellent particle size stability, and adjustable particle production rates via nozzle pressure variation. It is suitable for applications such as aerosol generation against overpressure, HEPA and ULPA filter testing, cleanroom validation, and airflow visualization.
Atomizer Aerosol Generator ATM 210/H
The ATM 210/H aerosol generator produces aerosols with precise properties in accordance with VDI 3491 guidelines. Designed for aerosol generation in pressurized vessels up to 10 bar, it ensures a stable particle size distribution, high reproducibility, and a consistent aerosol output. It is compatible with various liquids such as DEHS or PAO (Emery 3004) and can also disperse PSL reference materials.
​
This generator operates with an external pressurized air supply, featuring a pressure reducer and manometer for easy and safe handling. The liquid reservoir is integrated within the chassis, and a protection valve ensures safety. All fluid components are certified for pressures up to 20 bar.
​
Key advantages include polydisperse aerosol generation primarily below 1 μm, adjustable particle production rates via nozzle pressure control, and suitability for producing latex aerosols. It is commonly used for aerosol generation against overpressure, HEPA and ULPA filter testing, cleanroom validation, and airflow visualization.
Atomizer Aerosol Generator ATM 211
The ATM 211 is a pressure-resistant atomizer aerosol generator designed for aerosol production from liquids against counter pressure up to 10 bar. Operated by compressed air, it features a robust and compact stainless steel construction, ensuring durability and corrosion resistance. The device generates test aerosols with defined characteristics and can be used for aerosol dispersion in pressurized applications.
​
Compliant with VDI 3491-2 and VDI 4258-1 standards, the ATM 211 provides long-term stable aerosol generation and is suitable for producing polydisperse aerosols, mainly submicron, as well as aerosol generation based on salt solutions. It is ideal for applications requiring reliable aerosol generation in pressurized systems.
Atomizer Aerosol Generator ATM 220
The ATM series aerosol generators are designed to produce test aerosols with defined properties in accordance with VDI 3491. Their advanced design ensures stable particle size distribution and concentration, providing highly reproducible results. These generators are essential for quality assurance, health, and safety applications, including filter testing, cleanroom validation, and safety cabinet certification.
​
The ATM series offers long-term stable test aerosols with submicron particle size distribution and adjustable particle production. They are widely used in filter testing, aerosol research for inhalation studies and toxicological experiments, environmental research, calibration of measuring instruments, and flow visualization. Their adaptability allows for customized solutions based on specific use cases.
Atomizer Aerosol Generator ATM 221
The ATM series aerosol generators are designed to produce test aerosols with defined properties in accordance with VDI 3491. Their advanced design ensures consistent particle size distribution and concentration, providing highly reproducible results. These generators are essential for quality assurance, health, and safety applications, including filter testing, cleanroom validation, and safety cabinet certification.
​
Key advantages include long-term stable aerosol generation, submicron particle size distribution, adjustable particle production, and customized solutions for specific use cases. They are widely used in filter testing, aerosol research for inhalation studies and toxicology experiments, environmental research, calibration of measuring instruments, flow visualization, and cleanroom validation.
Atomizer Aerosol Generator ATM 222
The ATM 222 aerosol generator combines key features of the ATM 220 and ATM 228 models to provide long-term stable generation of test and calibration aerosols from pure liquids, solutions, and suspensions. Designed in compliance with VDI 3491-2, it operates using compressed air or other inert gases such as nitrogen or carbon dioxide. The generator ensures reproducible aerosol production by controlling the pressure drop over the nozzle, enabling stable operation even at very low airflows and particle production rates.
​
This generator is ideal for applications such as aerosol generation from pure liquids, solutions, and suspensions, fractional efficiency testing of filter media, long-term stable test and process aerosol generation, and calibration and validation of particle measurement techniques. It features stable aerosol generation at low particle production rates, precise and reproducible adjustment of operating points, low-noise operation, and optional remote control via a serial interface.
ATM 226 Atomizer Aerosol Generator
The ATM series aerosol generators are designed for producing test aerosols with defined properties in compliance with VDI 3491. Their advanced design ensures consistent particle size distribution and concentration, delivering highly reproducible results. These generators are essential for quality assurance, health and safety applications, including filter testing, safety cabinet certification, and cleanroom validation.
​
Key advantages include compliance with VDI 3491, long-term stable aerosol production, submicron particle size distribution, adjustable particle output, and customized solutions for specific applications. They are widely used in filter testing, aerosol research (such as inhalation studies and environmental research), calibration of measuring instruments, flow visualization, and cleanroom validation.
Atomizer Aerosol Generator ATM 228
The aerosol generator ATM 228 is an advanced version of the ATM 226, designed for mobile generation of test and calibration aerosols from pure liquids, solutions, and suspensions. It meets all VDI 3491-2 requirements and features a brushless compressor, eliminating the need for an external compressed air supply. The air flow rate is controlled via the nozzle’s pressure drop, ensuring stable and reproducible aerosol generation, even at very low air flow rates and particle production levels.
​
Applications include aerosol generation from various liquids, integrity and recovery testing of HEPA/ULPA filters (ISO 14644-3), acceptance testing for cleanrooms, safety workbenches, and smoke detectors, as well as producing calibration aerosols for particle counters. Key features include stable operation at low particle production rates, precise adjustment of operating points, mobility with an internal compressor and optional battery operation, and optional remote control via a serial interface.
Atomizer Aerosol Generator ATM 230
The aerosol generator ATM 230 produces aerosols with defined properties according to VDI 3491, ensuring high aerosol output over extended operation times. Its design maintains a stable particle size distribution and concentration with high reproducibility. Capable of atomizing various liquids such as DEHS, PAO (Emery 3004), and salt solutions, it can also generate PSL standards.
​
Designed for use with an external pressurized air supply, the ATM 230 features user-friendly controls and pressure indicators for safe and efficient operation. The liquid reservoir is housed within its chassis. Key advantages include polydisperse aerosol generation primarily below 1 μm, consistent particle size distribution, and adjustable particle production rates via nozzle pressure variation.
Applications include generating tracer particles, cleanroom measurements, certification of laminar flow boxes, and testing HEPA and ULPA filters and filter media.
Atomizer Aerosol Generator ATM 231
The Atomizer Aerosol Generator ATM 231 produces droplet aerosols with defined properties according to VDI 3491-2. Designed for use with an external compressed air supply, it features a submerged nozzle and a built-in liquid reservoir for efficient operation.
The ATM 231 ensures stable aerosol output over long durations, maintaining a consistent particle size distribution and concentration with high reproducibility. It can aerosolize various liquids, including PAO (Emery 3004), DEHS, salt solutions, and PSL-standard suspensions.​ Key benefits include polydisperse aerosol generation, primarily submicron, and adjustable production rates through nozzle pressure variation. Applications include testing HEPA and ULPA filter media and visualizing airflows using tracer particles.
Atomizer Aerosol Generator ATM 240/L
The Atomizer Aerosol Generator ATM 240/L is designed to produce dry PSL test aerosols from aqueous polystyrene latex (PSL) suspensions. While many filter test standards recommend liquid aerosols like DEHS, PAO, or paraffin oil, these can lead to contamination or chemical interactions with certain filter materials, particularly in semiconductor and aerospace applications.
​
The ATM 240/L eliminates these issues by generating inert solid aerosols, making it suitable for testing PTFE membranes, specialized filters, and conducting HEPA filter leak tests according to ISO 29464-4 (formerly EN 1822-4). Key features include high-concentration PSL aerosol generation with minimal dispersion volume, integrated aerosol drying to reduce additional equipment needs, and start/stop operation for individual tests. This system ensures precise and contamination-free aerosol generation for sensitive applications.
Atomizer Aerosol Generator ATM 240/S
The aerosol generator ATM 240/S is designed to produce aerosols from suspensions, such as salt or sugar solutions, with a high concentration of particles larger than 1 µm. When operated with aqueous potassium chloride suspensions (≥5 wt.-%), it generates solid aerosols that meet ISO 16890-2 requirements at moderate test flow rates up to 64 m³/h.
​
Applications include fractional air filter efficiency testing (ISO 16890-2), calibration and validation of aerosol measurement instruments, and medical research on coarse saliva aerosols. The generator ensures stable aerosol production according to VDI 3491-2, delivers high particle number concentrations in the 0.01–10 µm range, and features a compact design with an integrated aerosol dryer for quick operational readiness, easy cleaning, and low maintenance.
The Aerosol Generator ATM 241
The aerosol generator ATM 241 is a high-performance droplet generator designed for producing consistent, high-concentration aerosols in accordance with VDI 3491. It is ideal for generating tracer particles and verifying measurements in large clean rooms as per VDI 2083 and DIN EN ISO 14644 standards.
​
Its innovative design features a block with four slot nozzles mounted in a nearly enclosed stainless steel vessel, connected to an external compressed air supply. During operation, all nozzles remain submerged in the aerosol liquid. The ATM 241 ensures highly stable particle number concentrations, consistent size distributions, and polydisperse aerosols primarily below 1 µm. The particle production rate can be adjusted by varying nozzle pressure and the number of active nozzles. Applications include verifying measurements in large clean rooms, testing HEPA and ULPA filter media, and generating tracer particles for airflow visualization.
​Atomizer Aerosol Generator ATM 243
The ATM 243 aerosol generator is specifically designed for testing oil mist separators, featuring an innovative design protected by a utility model. It produces aerosols that meet the required particle size and concentration standards for oil mist separator testing, ensuring a highly stable particle size distribution and concentration with excellent reproducibility.
​
This generator allows for temperature control of the generated aerosols and can operate with various types of oils. The mass flow rate can be adjusted based on oil type and carrier gas pressure while maintaining a set working temperature. It generates a polydisperse aerosol with a mean particle size of 1–2 μm, offering high particle concentration and mass flow. Applications include testing oil mist separators, conducting capacity tests on filters, and supporting research and development in filtration and aerosol technology.
Fotometer-Calibration-System FCS 248
The Fotometer-Calibration System FCS 248 is designed for controlled test aerosol generation to calibrate measuring devices. It features a specialized aerosol generator regulated by additional instrumentation, using DEHS as the aerosol substance. The system allows for adjustable DEHS particle concentration and volume flow via control valves, enabling precise calibration.
​
Up to three devices can be calibrated simultaneously, with the option to supply particle-free air for zero adjustment. The system supports aerosol concentration and volume flow adjustments up to 100 l/min, making it suitable for calibrating photometers, particle counters, and aerosol spectrometers. Its compact housing ensures mobility, and an optional battery operation enhances flexibility for field use.
​Large Droplet Generator LDG 244
The Large Droplet Generator LDG 244 is designed for applications requiring high oil mass flow, making it a key component of the SPT 140 test rig. It is particularly suited for simulating oil gushes and wall films. Using a heated single-medium nozzle, the LDG 244 generates oil droplets with significantly larger diameters and higher mass flow rates than the Atomizer ATM 243.
​
Capable of producing polydisperse aerosols with a mean particle size of 50–100 μm, it delivers mass flow rates from 50 to 2000 g/h with adjustable and regulated aerosol temperature. The system supports various oils and can operate independently with an additional control unit. It is ideal for testing oil mist separators, conducting filter capacity tests, simulating oil film effects, and research and development applications.
Solid Aerosol Generator SAG 410
The Solid Aerosol Generator (SAG) 410 is designed for generating aerosols from powders using toothed belt dosing, ensuring consistent and precise dosing for moderate mass flow rates. It is suitable for dry, easy-flowing substances and features a modular design that allows for various powder mass flows. The powder is transported and dispersed using a two-component nozzle, in accordance with ISO 5011, with speed-controlled dosing for accuracy and reproducibility.
For challenging powders like Pural NF, the SAG 410/U or SAG 410/P models use a feed screw and dosing ring to ensure smooth transport. A special P-nozzle is available for materials prone to adhesion, optimizing suction efficiency.
​
Key benefits include stable, adjustable powder dosing, modular flexibility, high accuracy, and interchangeable dispersing units for varied mass outputs. The unit is easy to clean, refillable during operation without affecting aerosol concentration, and can be controlled manually or via remote systems. Applications include filter efficiency testing, aerosol research, combustion process optimization, ceramics technology, inhalation studies, and flow visualization techniques such as LDV and PIV.
Solid Aerosol Generator SAG 410/H
The Solid Aerosol Generator (SAG) 410/H is designed for generating aerosols from powders using toothed belt dosing, ensuring high mass flow rates with continuous and precise dosing. It is ideal for dry, free-flowing substances and features a modular design for flexible powder mass flow control. The fine adjustment of the flow is managed through variable belt speed control, while a two-component nozzle, compliant with ISO 5011, ensures effective dispersion.
​
For poor-flowing powders like Pural NF, the SAG 410/U or SAG 410/P models utilize a feed screw and dosing ring to facilitate transport. A specialized P-nozzle optimizes suction for materials prone to adhesion. This generator is widely used in filter efficiency testing, aerosol research, combustion process optimization, ceramics technology, inhalation and toxicology studies, as well as flow visualization techniques such as LDV and PIV.
Solid Aerosol Generator SAG 410/L
The Solid Aerosol Generator SAG 410/L is designed for low mass flow rate aerosol generation from powders using a toothed belt dosing system. It ensures precise, continuous powder dosing with speed control, providing a constant and reproducible feed rate across a wide range of applications. Its modular design allows integration with various dosing and dispersing units, making it highly versatile.
​
This generator offers user-independent, highly accurate metering, remote control capability, and simple interchangeable dispersing units for flexible operation. It is easy to clean, refillable during operation without affecting aerosol concentration, and suitable for long-term studies. Applications include filter efficiency testing, aerosol research, combustion process optimization, ceramics technology, inhalation and toxicology studies, and flow visualization techniques such as LDV and PIV.
Solid Aerosol Generator SAG 410/M
The Solid Aerosol Generator SAG 410/M is designed for low mass flow rate aerosol generation from powders, featuring a toothed belt dosing system and a large reservoir. It ensures precise, continuous powder dosing with speed control for a constant and reproducible feed rate across various applications. The modular design allows integration with different dosing and dispersing units, offering flexibility and ease of use.
​
This generator provides highly accurate, user-independent metering, remote control capability, and interchangeable dispersing units for a wide range of output. It is easy to clean, refillable during operation without affecting aerosol concentration, and ideal for long-term studies. Applications include filter efficiency testing, aerosol research, combustion process optimization, ceramics technology, inhalation and toxicology studies, and flow visualization techniques such as LDV and PIV.
Solid Aerosol Generator SAG 410/P
The Solid Aerosol Generator SAG 410/P is designed for low mass flow aerosol generation from powders using a ring dosing system, ideal for powders with low flowability. It ensures precise, continuous powder dosing with speed control, offering stable and reproducible feed rates. Its modular design allows integration with various dosing and dispersing units for versatile applications.
​
For poor-flowing powders like Pural NF, the SAG 410/P uses a feed screw and dosing ring for material transport, with a specialized P-nozzle preventing adhesion. It supports remote operation and refilling during use without affecting aerosol concentration. Applications include filter efficiency testing, aerosol research, combustion process optimization, ceramics technology, inhalation and toxicology studies, and flow visualization. Easy to clean and highly accurate, it is well-suited for long-term studies and industrial use.
​Solid Aerosol Generator SAG 410/U
The Solid Aerosol Generator SAG 410/U is designed for low mass flow aerosol generation from powders using a ring dosing system, making it ideal for powders with low flowability. It ensures precise, continuous dosing with speed control, maintaining stable and reproducible feed rates across various applications.
​
For poorly flowing powders like Pural NF, the SAG 410/U utilizes a feed screw and dosing ring for material transport, with a specialized P-nozzle preventing adhesion. Its modular design allows integration with different dosing and dispersing units for versatile use. The system supports remote operation and refilling without disrupting aerosol concentration. Applications include filter efficiency testing, aerosol research, combustion process optimization, ceramics technology, inhalation and toxicology studies, and flow visualization. With easy cleaning, user-independent metering, and long-term stability, it is suitable for extended studies and industrial applications.
Solid Aerosol Generator SAG 420
The Dust Feeder/Dust Disperser SAG 420 generates solid aerosols by transforming powdered solids into an air-floating state, offering a wide dosing range and continuous operation. It allows for easy refilling during use and supports mass flow control via an optional weigh scale.
​
Designed for applications requiring stable, well-defined aerosol characteristics, the device ensures consistent dosing and efficient dispersion of powder down to primary particle size. It is ideal for testing filter media separation performance, dust charging for filters and separators, fractional and total separation efficiency measurements, and air stream visualization.
Solid Aerosol Generator SAG 440
The SAG 440 ASHRAE dust disperser is designed to meet the requirements of ASHRAE 52.2 and DIN EN 779 standards for testing particulate air filter performance. Optimized for ASHRAE test dust, it efficiently doses dust containing fibers, ensuring consistent results in separation efficiency testing.
​
With a high concentration range and stable dosing over extended periods, the SAG 440 operates continuously and allows refilling during use, making it ideal for long-term testing. It is well-suited for evaluating filter dust holding capacity, testing separation efficiencies, and calibrating dust samplers and monitors. Optional remote control enables manual or computer operation.
Condensation Aerosol Generator SLG 270
The SLG series aerosol generators produce monodisperse aerosols with precise properties for laboratory and research applications. Depending on the selected particle material, both droplet and solid-state aerosols can be generated. The patented design, combined with advanced control instruments, ensures quick and reproducible adjustment of particle size and concentration.
​
The generators provide a consistent high number concentration, rapid response to size adjustments, and spherical, electrically neutral particles. They are compatible with various particle materials and feature straightforward operation. Applications include calibrating particle measuring instruments, aerosol research, filter testing, separation efficiency determination, inhalation and toxicology studies, tracer particle generation, and seeding applications.
Dynamic Dilution System DDS 560
The DIL series dilution systems enable precise particle size and number measurements even at high concentrations, where particle counters may otherwise reach their coincidence range and produce unreliable results. These devices provide a fixed dilution ratio and are calibrated for the total volume flow rate of the particle counter.
​
For more flexible applications, the DDS series dynamic dilution systems allow adjustable dilution factors for total volume flows between 0.5 l/min and 3 l/min, with real-time monitoring of both values on an LCD display. These systems require no auxiliary or exhaust air, ensuring minimal maintenance and ease of use. Applications include cleanroom monitoring, filter media verification, aerosol research, and aerosol generator testing.
Diffusion Dryer Unit DDU 570/H
The Diffusion Dryer DDU 570 is designed as an accessory for Topas GmbH aerosol generators, providing efficient drying of aqueous aerosols. It features a transparent acrylic tube filled with silica gel, which creates a dry environment where moisture is removed through diffusion. The aerosol flows through three mesh sleeves, maximizing the drying surface while minimizing particle loss.
​
The system allows easy replacement and thermal regeneration of the silica gel, with a transparent shell for quick desiccant checks. Applications include drying aqueous aerosols, generating calibration aerosols with aqueous suspensions, and serving as a nuclei source for condensation aerosol generators.
Diffusion Dryer Unit DDU 570/L
The Diffusion Dryer Unit DDU 570/L is designed for efficient drying of water-containing aerosols using silica gel. It is a short-model diffusion dryer used downstream of aerosol generators, primarily developed as an accessory for Topas GmbH Aerosol Generators. The unit consists of an acrylic tube with end caps and tube connectors, with the aerosol passing through three mesh sleeves surrounded by silica gel. This setup ensures effective drying through diffusion while minimizing particle loss, as the aerosol does not flow directly through the desiccant.
​
The silica gel's saturation level is indicated by a color change and can be regenerated using a drying oven or desiccator. Applications include drying wet aerosols, generating calibration aerosols from aqueous suspensions with Atomizer Aerosol Generators, and serving as a nuclei source for condensation aerosol generators such as the SLG 270.
DIL 540/C Dilution System
Aerosol dilution systems are essential for many aerosol measurement tasks, particularly in filter and filter media evaluations, where accurate particle size distribution analysis is required at both high and low concentrations. The DIL series dilution systems are designed for fixed total flow rates and dilution factors, making them ideal for on-site filter testing.The DDS and HDS series offer adjustable dilution factors for different total volume flows, ensuring flexibility in various applications. These devices operate without auxiliary pressurized air, and models such as the DIL 540 and HDS 561 feature internal monitoring and automatic adjustment of the dilution factor. All systems are designed for mobile use, with the DIL 554 powered by a rechargeable battery.
​
Key benefits include precise and reproducible aerosol dilution under varying conditions, internal monitoring of dilution ratios, and low maintenance with long-term reliability. Applications include validation of cleanroom facilities, laminar airflow systems, filtration efficiency testing, and aerosol research.
Conditioning cabinet TDC 584​
The TDC 584 conditioning cabinet is designed for the safe and efficient neutralization of air filters and filter media using isopropanol vapor, in compliance with ISO 16890-4. Traditional methods require large volumes of liquid isopropanol, posing safety and environmental risks. This cabinet minimizes IPA consumption while ensuring uniform and consistent vapor distribution, reducing hazardous exposure in laboratory environments.
​
Key benefits include efficient filter discharge, low IPA consumption, adjustable vapor saturation, and certified safe operation. The system is ideal for conditioning air filters before mechanical separation testing, as well as electrostatic neutralization of various filter types, ensuring compliance with international standards.
DIL 541/C Dilution System
The DIL 541/C Dilution System is designed for controlled static dilution of aerosols at a fixed air flow rate of 28.3 L/min, offering a 1:10 dilution ratio. It ensures precise and reproducible adjustments to aerosol particle concentration, making it ideal for verifying test aerosols used in cleanroom testing, as specified in EN ISO 14644-3.
​
Key benefits include automatic dilution ratio adjustment, mobile operation without the need for compressed air, and internal monitoring of dilution with display. The system operates reliably with minimal maintenance, supports both over- and under-pressure operations, and is adaptable to customer-specific needs. It's suitable for cleanroom installations, filter efficiency testing, aerosol research, and measuring highly concentrated aerosols.
DIL 545/C Dilution System
The DIL 545/C Dilution System provides controlled static dilution (1:100) at a fixed air flow rate of 3 L/min, ensuring precise and reproducible aerosol concentration adjustments. It is particularly suited for verifying test aerosols in cleanroom installations, as required by EN ISO 14644-3.This system features automatic dilution ratio adjustment, mobile operation without the need for a compressed air supply, and compatibility with battery power. It directs the entire intake volume flow through a closed system, ensuring stable dilution even under changing conditions.
The unit includes internal monitoring with a display, offers high durability with minimal maintenance, and supports both over- and under-pressure operation. It can also be customized for specific dilution ratios and operated in series with other units. Applications include cleanroom aerosol verification, acceptance testing of laminar flow boxes and safety cabinets, filter separation efficiency measurements, and aerosol research.
DIL 546/C Dilution System
The DIL 546/C Dilution System provides controlled static dilution (1:10) at a fixed air flow rate of 3 L/min, ensuring precise and reproducible aerosol concentration adjustments. It is particularly suitable for verifying test aerosols in cleanroom installations, as required by EN ISO 14644-3. This system features automatic dilution ratio adjustment, mobile operation without compressed air supply, and optional battery power. It directs the entire intake volume flow through a closed system, maintaining stable dilution under changing conditions.
Internal monitoring with a display ensures reliability, while the unit supports both over- and under-pressure operation. Customizable dilution ratios and series operation compatibility enhance its flexibility. Applications include cleanroom aerosol verification, acceptance testing of laminar flow boxes and safety cabinets, filter separation efficiency measurements, and aerosol research.
Dilution System DIL 550
The DIL 550 Dilution System provides static aerosol dilution (1:100) at a fixed air flow rate of 28.3 L/min, ensuring precise and reproducible particle concentration reduction. It is primarily used for verifying test aerosols in cleanroom environments, as required by DIN EN ISO 14644-3. The system follows the VDI 3491-15 standard, maintaining the original particle size distribution while achieving the specified dilution ratio.
​
Key benefits include consistent aerosol dilution under varying conditions, internal dilution ratio monitoring with visual display, and mobile operation without the need for a compressed air supply. It features long-term reliability with minimal maintenance and supports both overpressure and underpressure operation. The flow rate and dilution factor can also be customized to meet specific requirements. Applications include cleanroom validation, testing of laminar flow boxes and safety cabinets, filtration efficiency evaluation, high-concentration aerosol analysis, and aerosol research.
Dilution System DIL 551
The DIL 551 Dilution System provides static aerosol dilution (1:10) at a fixed air flow rate of 28.3 L/min, ensuring precise and reproducible particle concentration reduction. It is primarily used for verifying test aerosols in cleanroom environments, as required by DIN EN ISO 14644-3. The system follows the VDI 3491-15 standard, maintaining the original particle size distribution while achieving the specified dilution ratio.
​
Key benefits include stable aerosol dilution under varying conditions, internal dilution ratio monitoring with visual display, and mobile operation without the need for a compressed air supply. It features long-term reliability with minimal maintenance and supports both overpressure and under pressure operation. The flow rate and dilution factor can be adjusted to meet specific requirements. Applications include cleanroom validation, testing of laminar flow boxes and safety cabinets, filtration efficiency evaluation, high-concentration aerosol analysis, and aerosol research.
Dilution System DIL 552
The DIL 552 Dilution System provides customized static aerosol dilution at a fixed air flow rate of 28.3 L/min, ensuring precise and reproducible particle concentration reduction. It is primarily used for verifying test aerosols in cleanroom environments, in compliance with DIN EN ISO 14644-3. Following the VDI 3491-15 standard, it maintains the original particle size distribution while achieving the required dilution ratio.
​
Key benefits include stable aerosol dilution under varying conditions, internal dilution ratio monitoring with visual display, and mobile operation without the need for a compressed air supply. It offers long-term reliability with minimal maintenance and supports both overpressure and under pressure operation. The flow rate and dilution factor can be adjusted to meet specific requirements. Applications include cleanroom validation, testing of laminar flow boxes and safety cabinets, filtration efficiency evaluation, high-concentration aerosol analysis, and aerosol research.
Dilution System DIL 553
The DIL 553 Dilution System provides precise static aerosol dilution at flow rates of 56.6 or 50 L/min, offering dilution ratios of 1:100 or 1:10. It is designed for cleanroom aerosol verification in compliance with DIN EN ISO 14644-3 and follows the VDI 3491-15 standard, ensuring particle size distribution remains unchanged.
​
This system delivers stable and reproducible aerosol dilution under varying conditions, features internal dilution ratio monitoring with visual display, and operates without the need for compressed air. It is highly durable, requires minimal maintenance, and supports both overpressure and underpressure operation. Flow rate and dilution factors can be customized to meet specific needs.
Applications include cleanroom validation, testing laminar flow boxes and safety cabinets, filtration efficiency assessment, high-concentration aerosol analysis, and aerosol research.
DIL 554 Dilution System
The DIL 554 Dilution System provides precise static aerosol dilution at a 1:100 ratio with a flow rate of 28.3 L/min, designed for mobile operation. It is primarily used for cleanroom aerosol verification in compliance with EN ISO 14644-3 and VDI 2083, ensuring accurate measurements under increased aerosol concentrations.
This system is battery-operated, eliminating the need for auxiliary pressurized air or exhaust, making it ideal for field applications.
It offers constant and reproducible aerosol dilution under changing conditions, with real-time monitoring and display of the actual dilution ratio. It features long-term durability, minimal maintenance, and precise operation in both overpressure and underpressure modes. Applications include cleanroom validation, testing laminar flow boxes and workbenches, filtration efficiency assessment, high-concentration aerosol measurements, and aerosol research.
DIL 554/H Dilution System
The DIL 554/H Dilution System provides static aerosol dilution at a 1:100 ratio with a flow rate of 56.6 L/min, designed for mobile operation. It is primarily used for cleanroom aerosol verification in compliance with EN ISO 14644-3 and VDI 2083, ensuring accurate measurements at increased aerosol concentrations.This system is battery-operated, requiring no auxiliary pressurized air or exhaust, making it ideal for field applications.
It ensures constant and reproducible aerosol dilution under varying conditions, with real-time monitoring and display of the actual dilution ratio. Built for long-term reliability, it requires minimal maintenance and offers precise operation in both overpressure and underpressure modes. Applications include cleanroom validation, testing laminar flow boxes and workbenches, filtration efficiency assessment, high-concentration aerosol measurements, and aerosol research.
DIL 554/T Dilution System
The DIL 554/T Dilution System provides static aerosol dilution at a 1:100 ratio with a flow rate of 28.3 L/min, designed for mobile operation with a 1/4'' hose connector. It is primarily used for cleanroom aerosol verification in compliance with EN ISO 14644-3 and VDI 2083, ensuring accurate measurements at increased aerosol concentrations.Battery-operated with an optional power adapter, it requires no auxiliary pressurized air or exhaust, making it ideal for field applications.
The system maintains constant and reproducible aerosol dilution under varying conditions, with real-time monitoring and display of the dilution ratio. Built for long-term reliability, it requires minimal maintenance and offers precise operation in both overpressure and under pressure modes. Applications include cleanroom validation, laminar flow box and workbench testing, filtration efficiency assessment, high-concentration aerosol measurements, and aerosol research.
DIL 554/Z Dilution System
The DIL 554/Z Dilution System provides static aerosol dilution at a 1:10 ratio with a flow rate of 28.3 L/min, designed for mobile operation. It is primarily used for cleanroom aerosol verification in compliance with EN ISO 14644-3 and VDI 2083, ensuring accurate measurements at increased aerosol concentrations.Battery-operated with an optional power adapter, it requires no auxiliary pressurized air or exhaust, making it ideal for field applications.
The system maintains constant and reproducible aerosol dilution under varying conditions, with real-time monitoring and display of the dilution ratio. Built for long-term reliability, it requires minimal maintenance and offers precise operation in both overpressure and under pressure modes. Applications include cleanroom validation, laminar flow box and workbench testing, filtration efficiency assessment, high-concentration aerosol measurements, and aerosol research.
​DIL 555 Dilution System
The DIL 555 Dilution System provides a static aerosol dilution of 1:100 at a flow rate of 2.83 L/min, designed for cleanroom aerosol verification in compliance with DIN EN ISO 14644-3. It ensures precise and reproducible particle concentration reduction while maintaining the original particle size distribution. With internal monitoring and visualization of the dilution ratio, the system operates without the need for compressed air, making it suitable for mobile applications.
It features long-term reliability, minimal maintenance, and precise performance in both overpressure and underpressure conditions. The flow rate and dilution factor can be adjusted to meet specific requirements. Applications include validation of laminar air flow boxes and cleanroom environments, filtration efficiency testing, analysis of highly concentrated aerosols, and aerosol research.
​DIL 556 Dilution System
The DIL 556 Dilution System provides a static aerosol dilution of 1:10 at a flow rate of 2.83 L/min, designed for cleanroom aerosol verification in accordance with DIN EN ISO 14644-3. It ensures precise and reproducible particle concentration reduction while maintaining the original particle size distribution. With internal monitoring and visualization of the dilution ratio, the system operates without the need for compressed air, making it suitable for mobile applications. It features long-term reliability, minimal maintenance, and precise performance in both overpressure and under pressure conditions.
The flow rate and dilution factor can be adjusted to meet specific requirements. Applications include validation of laminar air flow boxes and cleanroom environments, filtration efficiency testing, analysis of highly concentrated aerosols, and aerosol research.
DIL 550 Dilution System
The DIL 550 Dilution System provides a static aerosol dilution of 1:100 at a flow rate of 28.3 L/min, ensuring precise and reproducible particle concentration reduction while maintaining the original particle size distribution. It is primarily used for cleanroom aerosol verification as required by DIN EN ISO 14644-3. Designed for mobile operation without the need for compressed air, it features internal monitoring and visualization of the dilution ratio.
The system offers long-term reliability, minimal maintenance, and precise performance in both overpressure and under pressure conditions. Flow rate and dilution factor can be customized for specific applications. Applications include validation of laminar air flow boxes and cleanroom environments, filtration efficiency evaluation, analysis of highly concentrated aerosols, and aerosol research.
Electrostatic Aerosol Neutralizer EAN 581
The Electrostatic Aerosol Neutralizer EAN 581 from Topas conditions the charge distribution of test dusts and other aerosols, as required by ISO 11155-1 and DIN 71460-1. It enables precise control of charge equilibrium by generating positive and/or negative ions, ensuring reproducible aerosol separation evaluations for cyclones, filters, and impactors.
​
Designed for easy integration into existing test systems, the EAN 581 operates without ionizing radiation, eliminating the need for occupational radiation protection. It features integrated spark detection and supports aerosol neutralization for highly charged aerosols, as well as unipolar charging for specific applications. Applications include aerosol neutralization, controlled unipolar particle charging, filter media performance evaluation, quality assurance, and research and development.
Electromagnetic Sieve Vibrator EMS 755
The Electromagnetic Sieve Vibrator EMS 755 is designed for optimizing micro-sieving processes for both dry powders and wet suspensions. It enhances sieving efficiency through horizontal vibrations, complementing ultrasonic energy. The device allows easy sieve changes and adjustable positioning for versatile applications. It can be integrated with the Ultrasonic Disintegrator UDS 751/UP 200S for enhanced particle dispersion.
​
Additionally, it supports bulk analysis using standard wire cloth sieves. Key benefits include reduced sieving time, particularly for particles below 20 µm, effective selectivity through optimized oscillation, and suitability for large sample volumes. Applications include particle size fractionation, wet sieving, and powder feeding in various industrial and research settings.
GMS 141 gravimetric sampling system
The GMS 141 gravimetric sampling system enables efficient detection of oil concentrations in blow-by gases after oil mist separators at engine test stands. It supports compliance with evolving engine exhaust regulations and captures oil wall films for engine protection. Oil mist separators play a crucial role in crankcase ventilation systems, requiring benchmarking based on differential pressure and oil flow to select the most suitable type for new engine designs.
Key benefits include reproducible detection of oil content, compatibility with both flat sheet and cartridge filters, a bypass section for sampling stabilization, automatic measurement stop based on elapsed time or differential pressure, and a heated sample adapter to minimize condensate separation.Applications include the gravimetric benchmarking of oil mist separators in combustion engine crankcase ventilation systems and the calibration of aerosol generators.
Regulated Flow Unit RFU 564
The Regulated Flow Unit RFU 564 is designed to provide adjustable and time-stable airflow rates for both under-pressure (intake mode) and over-pressure (supply mode) operations. It simplifies aerosol analytical test setups by eliminating the need for multiple components such as blowers, pipes, valves, flow meters, and filters. This enhances efficiency and flexibility for users dealing with frequently changing test requirements.
​
Applications include generating well-defined airflow rates, aerosol conditioning through homogenization, dilution, and transport, dilution of environmental and process aerosols, and preparation of particle-free environments for purging or evacuation, such as in isolators. Key features include regulated airflow compensation for pressure changes, easy operation via touch screen or serial interface, and a compact design suitable for mobile or tabletop use.
Sample Switching Unit SYS 520
The Sample Switching Unit SYS 520 enables automated and reliable switching between two sampling points, typically used for measuring fractional efficiencies of filters or filter media. By alternating between upstream and downstream sampling with a single particle size analyzer, it simplifies measurement procedures. The unit includes an integrated HEPA filter for purging and is designed for seamless connection to LAP 32x series aerosol spectrometers, featuring a default control interface.
​
Applications include particle measurements at multiple sampling points and determining fractional efficiency curves at test stands. Key advantages include automated switching for hard-to-reach positions, reliable pinch valve operation, and a selectable purging routine to ensure measurement accuracy. The system operates via an external power supply.
​Sampling System SYS 525
The Sampling System SYS 525 is designed for representative aerosol sampling and pressure uncoupling from compressed gas lines at medium pressures up to 8 bar. It ensures minimal modification of the sampled aerosol and meets the requirements of guideline VDI 2083/7. The system is particularly useful for analyzing gases in pressure vessels, where chemical, physical, and particulate composition must be assessed.
​
Key benefits include isokinetic and isoaxial sampling, battery operation, and a display for real-time isokinetics monitoring. Applications include aerosol sampling from pressurized systems, acceptance and periodic evaluation of pressurized environments, process monitoring in industries such as pharmaceuticals, chemicals, and food production, as well as aerosol research.
Rectangular Sampling Probe SYS 528
The Rectangular Sampling Probe SYS 528 is designed for leakage and integrity testing of built-in filter systems in cleanrooms according to ISO 14644-3. It features a rectangular cross-section at the suction point, transitioning smoothly into a round hose connection. The probe’s construction ensures a high-quality, smooth internal surface, optimizing airflow and minimizing turbulence.
​
Key benefits include location-independent count rates, precise scanning even in filter corners, and reduced scanning time due to its wide probe width. It is ideal for applications requiring efficient and accurate leakage testing of cleanroom filter systems.
Rectangular Sampling Probe SYS 529
The Rectangular Sampling Probe SYS 529 is designed for leakage and integrity testing of built-in filter systems in cleanrooms according to ISO 14644-3. It features a rectangular cross-section at the suction point, smoothly transitioning into a round hose connection for optimized airflow. The high-quality manufacturing process ensures a smooth internal surface, minimizing turbulence and ensuring accurate particle sampling.
​
Key benefits include location-independent count rates, precise scanning in filter corners, and reduced scanning time due to its wider probe width. It is ideal for efficient and accurate leakage testing of cleanroom filter systems.
Conditioning chamber TDC 585
The Conditioning Chamber TDC 585 is designed to neutralize filter media by vaporizing isopropyl alcohol (IPA) in accordance with ISO 16890-4. This chamber is especially suited for conditioning small filter elements and media, offering a more compact solution compared to the TDC 584 conditioning cabinet for full filter elements. The reduced conditioning volume lowers safety risks, and its operation is confirmed by an external safety report. The TDC 585 operates without a power supply or pressurized air and requires placement under an ATEX-compliant fume hood.
​
Key benefits include simple and safe handling, minimal use of hazardous IPA, and efficient conditioning of filter media. It is ideal for neutralizing filter media in compliance with ISO 16890-4.
Thermodenuder TDD 590
The Thermodenuder TDD 590 is designed to remove volatile organic components (VOCs) and moisture from aerosol samples, ensuring accurate dry particle size measurements. In many industrial applications, analyzing particle size in hot gases is essential, but conventional measuring instruments cannot handle high temperatures. Cooling hot gases can lead to condensation and nucleation, resulting in erroneous particle size measurements. The TDD 590 prevents these errors by regulating sample temperature, reducing moisture and volatile particles before cooling.
​
Key benefits include efficient VOC removal, high efficiency due to extended residence time and temperature control up to 400°C, a long operating life for activated carbon, and a design made from VOC-inert materials. It is suitable for both laboratory use and integration into measurement systems. Applications include particle measurements in hot exhaust gases, separation of vaporous phases from aerosols, and removing volatile particles from aerosol samples in research and industrial settings.
Ultrasonic Desintegrator UDS 751
The Ultrasonic Disintegrator UDS 751/UP 200S is a high-power ultrasound device designed for dispersing solutions, emulsions, and suspensions. Developed in collaboration with Hielscher GmbH, it introduces ultrasound with power densities up to 600 W/cm² into liquid media, making it ideal for laboratory and small-scale production tasks.
​
Key benefits include a compact design with high efficiency (>90%), ease of operation, and availability of different sonotrodes for various applications. It is widely used for cell disruption (cell lysis), bacterial and viral disintegration in medical and biological research, acceleration of chemical reactions, suspension preparation, dispersion of particle systems, crystallization modulation, mixture homogenization, and supporting wet sieving processes.
Ultrasonic Disintegrator UDS 751
The Ultrasonic Disintegrator UDS 751/UP 200S is a high-power ultrasound device designed for dispersing solutions, emulsions, and suspensions. Developed in collaboration with Hielscher GmbH, it introduces ultrasound with power densities up to 600 W/cm² into liquid media, making it ideal for laboratory and small-scale production tasks.
​
Key benefits include a compact design with high efficiency (>90%), ease of operation, and availability of different sonotrodes for various applications. It is widely used for cell disruption (cell lysis), bacterial and viral disintegration in medical and biological research, acceleration of chemical reactions, suspension preparation, dispersion of particle systems, crystallization modulation, mixture homogenization, and supporting wet sieving processes.
​Variable Dilution System VDS 562
The Variable Dilution System VDS 562 is designed to reduce high aerosol concentrations to analytically suitable levels without external particle-free air supply and with negligible pressure drop. It allows for dilution factors from >1 up to 1,000,000, addressing challenges in achieving high dilution rates (>1,000) without excessive air consumption or pressure loss. The system's dilution factor can be adjusted within a decade range, and it can be factory-calibrated for multiple flow rates between 28.3 l/min and 100 l/min.
​
Key benefits include high, infinitely variable dilution (up to 1:100,000), factory calibration for multiple flow rates, pressure drop compensation via an integrated blower, and remote-controlled adjustment. It is used for reducing high particle concentrations, diluting raw gas concentrations, validating cleanrooms (VDI 2083), preventing particle agglomeration in sampling lines, and validating optical particle counters for cleanroom applications (ISO 21501-4).
CRQWin software​
CRQWin software facilitates acceptance testing of cleanrooms in compliance with ISO 14644-3, streamlining the measurement and reporting process. It supports simultaneous data collection from multiple particle counters and integrates additional tests, such as airflow, temperature, and humidity measurements. Configurable time intervals and real-time data recording ensure accurate analysis and reporting. Designed as a multitasking Windows application, CRQWin enhances efficiency by reducing testing time and minimizing errors. It is widely used for cleanroom acceptance testing in controlled environments.
OPQWin software
OPQWin software is an extension of PASWin, designed for acceptance testing of operating theatres according to DIN 1946-4. It guides users through the step-by-step validation process of protection class measurements for hospital operating rooms. The software determines the protection class and generates standardized reports, with options to export results to MS Excel for further analysis. OPQWin is compatible with various aerosol generators and particle counters, ensuring flexibility in cleanroom validation and compliance with healthcare ventilation standards.
PAFWin software
PAFWin is a user-friendly software designed for configuring, controlling, and analyzing data from Topas test systems, particularly for filter test rigs. Running on Windows platforms, it provides real-time visualization of test rigs and ongoing tests. The software includes specific modules for controlling aerosol generators, particle sizers, gas analyzers, and dosing systems. It supports automatic test procedures based on industry standards and enables manual control for calibration, service, and research tasks. PAFWin features long-term data logging, filter sample and test gas databases, statistical functions, and dynamic data transfer to Excel. It is applicable for differential pressure tests, dust loading capacity determination, emission testing, gas adsorption measurements, and fractional efficiency testing of air filters. The software integrates with various industrial bus systems and supports network-based data management for efficient test rig validation.
PASWin software
PASWin is a particle analyzing software designed for configuring, controlling, logging, and analyzing data from particle counters and aerosol spectrometers. Running on Windows, it supports various measurement devices, including laser aerosol spectrometers (LAP 322), cleanroom particle counters (LAP 340), and liquid particle counters (FAS 362), along with external particle measurement devices. The software enables precise calculation, calibration, and graphical or tabular representation of particle size distributions and integral parameters. It supports ISO 9276-1 and ISO 9276-2 standards, allowing manual or automated measurement procedures, real-time monitoring, and statistical analysis. PASWin is widely used for determining particle size distributions, monitoring trends, comparing measurements, and evaluating separation efficiencies, particularly in filter characterization and air quality assessments.
