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 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 ...

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 ...