Air, Not Aerosol. Not all fit tests are the same. Not all testing methods produce the same results.  Quantifit Controlled Negative Pressure (CNP) method produces more accurate tests, faster. 


Quantifit- CNP Method

You can complete OSHA-approved Controlled Negative Pressure (CNP) Redon protocol in under two minutes. You’ll know if a user has a basic fit in 10 seconds. It’s that easy. Quantifit uses no consumables and is not environmentally dependent. In fact, it uses air as the challenge agent. 

Quantifit- Efficiency & Method

Quantifit provides the most accurate and verifiable fit test for respirators on the market, ensuring that your masks fit properly.

One tube pulls a negative pressure, and to keep the pressure constant, it has to pull out any additional air that leaks into the mask. This measurement directly tells us how much air has leaked into the mask, and that leak amount is converted to a fit factor. 

Quantifit- Vs. Other Methods

Quantifit offers unrivaled accuracy when compared to traditional Aerosol fit testers such as PortaCount. This has been scientifically proven.  Accuracy in doing a fit test is critical. The Quantifit, because of its accuracy, is a more health protective fit test when compared to traditional technologies.