TSI, Inc.

Around the globe, TSI provides a comprehensive range of solutions with unparalleled reliability and accuracy necessary to accomplish your goals. From workflow management, software services and measurement instrumentation, our complete suite of solutions are tailored to help you make informed, data-driven decisions to get your job done. 

Demand more from your respiratory protection program. PortaCount® Fit Testers combine real-time and real-world measurements to advance respirator safety beyond what any other fit tester can deliver. Choose the industry’s most accurate, fastest and easiest fit tester to increase your staff’s safety, with software and features to improve your program’s efficiency and productivity from training through compliance. 35 years of respirator fit test innovation. Setting the standard with each PortaCount® instrument introduction for reliability and accuracy, that will not stop with our current fourth generation. Trusted by professionals worldwide.  

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