The American Industrial Hygiene Foundation partnered with TSI to distribute the remaining production stock of PortaCount TM Plus Respirator Fit Tester Model 8020s that had recently been retired.

TSI Link™ for Respiratory Protection is a cloud-based software solution designed to streamline and centralize the management of respiratory protection programs for PortaCount™ Fit Tester users.

SHOREVIEW, Minn., Sept. 28, 2019 /PRNewswire/ -- OSHA has accepted two newly Modified Ambient Aerosol Condensation Nuclei Counter (CNC) Quantitative Respirator Fit Test Protocols. The new protocols go ...

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 ...

SHOREVIEW, Minn., June 5, 2017 /PRNewswire/ -- TSI Incorporated, a global leader in respirator fit testing instrumentation, is pleased to announce the next-generation PortaCount® Respirator Fit Tester ...

MITA assesses the overall integrity of masks by performing an aerosol leak test using the PortaCount ® Respirator Fit Tester as a particle detector. SHOREVIEW, MN - TSI, the industry leader in the ...

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 ...

TSI Incorporated, a global leader in respirator fit testing instrumentation, is pleased to introduce a new generation of PortaCount® Respirator Fit Testers SHOREVIEW, Minn., Nov. 15, 2017 /PRNewswire/ ...

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

Shoreview, MN, May 14, 2025 (GLOBE NEWSWIRE) -- TSI Incorporated, a global leader in Respirator Fit Testing, proudly announces the launch of the TSI Tempo™ Program, a unique and flexible solution, ...