OHD Blog

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!

Read More

Respiratory Mask Fit Testing with Facial Hair

Aug 7, 2017

The OHD Quantifit: ohdusa.com/products/quantifit

Read More