Quantitative Fit Testing

Quantitative fit testing (QNFT) confirms a respirator’s fit by comparing concentration levels of a substance outside the respirator to the concentration levels  of the same substance inside the respirator. Passing a quantitative respirator fit test with a quantitative fit test machine proves that the facepiece is sized correctly and the person knows how to don (put it on) correctly.

OHS Respiratory Protection
 

A Proven Quantitative Fit Test Solution From a Proven Leader

TSI has been the industry leader in quantitative fit testing equipment for over 25 years with the PortaCount® Pro/Pro+ Respirator Fit Testers.  They are the only OSHA compliant fit test systems that can test all types of respirators.

Depend on Quantitative Fit Testing for a Peace of Mind
  • In a world of pandemics and natural disasters, preparedness is imperative. Conducting a quantitative fit test with employees ensures they are ready and fully protected for whatever situation may arise.
  • PortaCount Pro/Pro+ Respirator Fit Testers deliver quantifiable, unambiguous results, as well as a direct measurement of fit factors, helping you maintain a reliable respiratory protection program.

When used as part of your respiratory protection program, TSI quantitative fit testing equipmentensures that your personnel get the best possible protection from their assigned respirator.


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TSI PortaCount® Academy---a powerful educational tool for the respirator fit testing world. Enroll today to be able to choose from a variety of interactive learning methods.

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