Respirator Fit Testing

OSHA Standard 29 CFR 1910.134

All respirators that rely on a tight-fitting mask-to-face seal need to be annually checked with either qualitative or quantitative methods to determine whether the mask provides an acceptable fit to a wearer.

Quantitative & Qualitative

Do you know the difference?

The QUANTITATIVE fit test procedure utilizes the 5-step CNP REDON Respirator Fit Test Protocol with the OHD Fit Tester 3000. This testing measures face seal leaking.

  • Necessary before entering a highly toxic atmosphere.
  • The respirator is connected to instruments that measure how much of the test agent gets into the facepiece.
  • You get an actual numbered measurement.

The QUALITATIVE fit test procedures rely on a subjective sensation (taste, irritation, smell) of the respirator wearer to a particular test agent.

  • Also called the odor test or irritant test.
  • If the odor or irritation is noticed, the unit must be refitted or another one used.
  • The test is only as accurate as the user’s sense of smell or sensitivity to irritation.


According to the new NFPA 1500-20, all fire departments are required to ensure that the facepiece seal capability shall be verified by Quantitative Fit Testing on an annual basis and whenever new types of RPE or facepieces are issued. (7.12.1 Fit Testing.)

The protection factor produced shall be at least 500 for negative-pressure facepieces for the person to pass the fitting test with that make of full facepiece. (7.12.6)

We offer Quantitative fit testing at either our facility or yours.

Contact us for more information Phone: 954-960-5068 or email us