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MOUDI™ II and Nano MOUDI™ II impactors are second generation Micro Orifice Uniform-Deposit Impactors (MOUDI™) from MSP, a Division of TSI. These impactors are noted for their superior aerodynamic design, sharp cut-size, and low particle loss characteristics. Thousands of...

Regular fit testing enhances workplace safety by ensuring respirators fit properly.

Available in the US and Canada. The PortaCount™ Respirator Fit Tester Model 8040-T Kit provides a consistent and objective quantitative respirator fit testing experience. The 8040-T Kit is bundled for your convenience. In addition to the 8040 Respirator Fit Tester, the Kit...

Extremely low false-count rate provides accurate 10 nm measurements at low particle concentrations to confidently monitor mini-environments and process gases—keeping manufactured products safe from nanoparticle contamination.

How well a respirator will protect an employee?

Accessory for certain Alnor, AccuBalance, and Airflow Instruments products.

Ultrafine particles are omnipresent in our atmosphere, and their number concentration can be very strongly influenced by weather and local particle sources, such as traffic. The Model 3783 Environmental Particle Counter was developed especially for near-freeway monitoring, i.e...