TSI’s PortaCount Respirator Fit Tester delivers an objective fit test for any respirator, including all N95s, in less than two and a half minutes. Using OSHA’s newly modified CNC protocols, fit tests ...

The PortaCount Fit Tester provides users with assistance across the entire respiratory protection program, from training to compliance. By clicking above, I agree to ...

UC Davis Health is assessing the integrity, performance of the respirator masks after they are decontaminated The goal is to establish a backup supply in the face of high demand during the coronavirus ...

Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...

As the world is responding to the COVID-19 outbreak, fit testing respirators for healthcare workers and first responders remain vital to respiratory protection programs to reduce exposure to the ...

TSI Service technician taking care of PortaCount Respirator™ Fit Tester Shoreview, MN, May 14, 2025 (GLOBE NEWSWIRE) -- TSI Incorporated, a global leader in Respirator Fit Testing, proudly announces ...

The Occupational Safety and Health Administration (OSHA) on Sept. 25 issued a final rule approving two additional quantitative fit testing protocols for inclusion in its Respiratory Protection ...