Fit Testing Glossary

Fit-testing has changed over the years. For a while, there was only one accepted technology and method for testing the fit of masks. Those processes have changed (for the better) as we provide an OSHA and ISO-approved method for fit-testing. Our patented controlled negative pressure (CNP) technology lets you perform a simple fit test in only 3 minutes!

You may be unaware of what all goes in to a fit test but don't worry, we are here to help. We've created a glossary of terms to help you discover all the requirements and instructions on performing an ISO-approved fit-test.


In the Fit-Testing Glossary, we define:

  • Commonly used fit-testing terms
  • Misunderstood phrases
  • Technical requirements to perform a fit test

To download a copy of a complete glossary for performing a fit test, fill out the form. If you have any questions on how OHD can streamline your fit-testing process, schedule a free demo.

Simply fill out your info below to download our detailed Fit Test Glossary Guide!