Filter Testers

Filter Testers

All filter test equipment from TSI, used for testing efficiencies of filter media and a variety of air filters, including high and very high-efficiency filters, respiratory filters, cartridges, and protective garments, is known for its simple and reliable operation.

All of our filter testers can determine the efficiency of filters using submicron poly- and monodisperse oil and/or sodium chloride aerosol. Additionally, TSI's filter test solutions are used to comply with various testing standards and regulations around the globe.
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Other Products and Services from TSI Instruments Ltd

Particle Sizers

Particle Sizers

TSI provides aerosol sizing instruments that expand our understanding of aerosols and lead to breakthroughs in research and a wide range of industries. TSI manufactures particle sizing instrumentation and systems that span the particle size range from 1 nm to 20 micrometers. Our instruments are routinely used around the globe in a variety of applications, including air quality monitoring, aerosol research, engine emissions, exposure studies, and many more.

TSI’s particle sizers provide particle size ranges for a variety of applications, click below to discover how TSI can support your research and measurement needs.
Environmental Air Monitors

Environmental Air Monitors

TSI’s environmental monitors measure size fractions of particles and ultrafine particles. They capture PM1, PM2.5, Respirable PM4, PM10, and Total PM.

The hard data you need to meet health and safety standards

Environmental air monitors help identify risks to communities and workers from breathable particles. With hard data on outdoor air quality and visibility, organizations can meet health and safety standards.

DustTrak products carry out short- and long-term outdoor surveys and remote monitoring. They operate in every season, 365 days a year, 24 hours a day. Our customers use them in a range of settings. They sample construction and remediation sites, open pit mines, research stations, wildfire/disaster areas, and more. Standard or customized enclosures protect DustTrak aerosol monitors in extreme indoor or outdoor environments.
Particle Counters & Detectors

Particle Counters & Detectors

Our family of particle counters and particle detectors contain instruments optimized for a variety of applications.

In environmental research and monitoring, customers face high concentrations in city centers, near freeways or harbors, or very low concentrations in remote locations which are used as reference sampling points.

In the laboratory, particle counters are often combined with particle sizers to measure size distributions.

Workplaces, hospitals, schools, residential homes and other sensitive environments prefer water-based Condensation Particle Counters (CPCs) to ensure the occupants’ safety and health.

Combustion aerosol has its own challenges, such as sampling the aerosol without changing it, or following regulatory directives for engine exhaust.
For the purpose of calibration, reference counting is typically performed with an Aerosol Electrometer.

Whatever your challenge is, TSI offers a solution. Let us help you to find yours.
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TSI Instruments Ltd

Stirling Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3ST, United Kingdom

TSI Ltd serves a global market by investigating, identifying & solving measurement problems. As an industry leader in the design & production of precision measurement instruments, TSI partners with research institutions & customers around the world to set the standard for measurements relating to Respirator Fit Testing, aerosol science, air flow, indoor air quality, fluid dynamics and biohazard detection. With headquarters based in the U.S. & field offices throughout Europe & Asia, TSI has established a worldwide presence in the markets we serve.