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Learn with TSI

TSI is part of the wider knowledge community

TSI’s scientists, engineers, and researchers are part of a wider knowledge community. We regularly collaborate with universities, colleges, R&D departments, laboratories, professional organizations, and other groups engaged in developing new technologies, products, and processes.

We are committed to your experience as a colleague and customer. We frequently host and co-host opportunities to learn and network with your industry peers. Please join us for training, seminars, webinars, and workshops led by TSI experts.


PortaCount Academy

How to conduct effective respirator fit testing using the PortaCount(R) Respirator Fit Tester.

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HVAC & IAQ Training Center

Application and product knowledge specific to TSI's HVAC and IAQ testing instruments.

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Fluid Mechanics

Fluid Mechanics Webinars

Topics for beginners, intermediate and advance level fluid mechanics researchers.

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Aerosol Education Webinars

Webinars on aerosol science, air quality, emissions, nanoparticles, and more from TSI experts.

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Flow Analyzers

Certifier Flow Analyzer Webinars

Biomedical and ventilator testing with Certifier Flow Analyzers.

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More PortaCount Resources

Articles and links to other information about respirator fit testing with PortaCount.

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Connect with TSI


News & Press

Read the latest news about TSI and industries we serve.

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Events & Shows

We are at the industry events important to you.

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Grow with TSI

We encourage curiosity and critical thinking. Browse TSI jobs.

Explore TSI Careers


Patents & Awards

TSI researchers and engineers hold more than 50 patents.

Browse TSI's Patents