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 ...

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 ...

TSI Incorporated introduces the Portacount Pro and Pro+ respirator fit testers, which offer fast, simple, easy-to-use, stand-alone operation and are OSHA-compliant for all respirators. These fit ...

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 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, 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, ...

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 ...

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 ...