OHD Blog

Effective Protection: Selecting a Respirator

Dec 12, 2017

What is the relationship between OSHA permissible exposure limits/maximum use concentrations and assigned protection factors?

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TSI to Discontinue Calibration Services for certain PortaCount® Models

Oct 30, 2017

Have you been waiting for the right time to upgrade your fit tester from the TSI PortaCount® to the revolutionary OHD Quantifit®? Aren't you tired of the inconvenience of sometimes having to ensure or generate particles in a closed room with fog machines, candles, salt fog or other means if you need to conduct a fit test? NOW is the perfect time to convert to the OHD Quantifit® to eliminate the hassle with particles. Move to a system which directly measures respirator leak by taking advantage of OHD's $1,500 Trade-In Offer!

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What's Required for a Respiratory Fit Test Program?

Apr 18, 2017

The Basics of Fit Testing

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