QNFT Quantitative Fit Test
Quantitative Fit Testing in NC and SC, can be performed by us on any type Respirator for your department or industry. OSHA Respiratory Protection 29 CFR 1910.134 mandates Quantitative Fit Tests
are required yearly.
- 3 minute respirator fit testing
- Test any make or model of your respirator
- On-board data storage can store more than 500 tests
- USB Memory Stick and Printer Interface
Quantitative Fit Test – QNFT NC and SC: Definition
QNFT is defined as an assessment of the adequacy of respirator fit that uses numerical measurement of the amount of leakage into the respirator. Quantitative fit tests use a probe inside the facemask.
Quantitative
Fit Test – QNFT:
Why do I need this?
OSHA respiratory protection regulations require annual Quantitative Fit Testing of all employees who are required to wear a respirator while on the job. Safe Air Systems, Inc now offers you an easy, economical way to achieve OSHA respiratory protection compliance. At your convenience, our technicians will come to your site and perform Quantitative fit testing of your employees in accordance with OSHA Respiratory Protection 29 CFR 1910.134 (Mandatory).
Quantitative Fit Test – QNFT: What is the difference between a Qualitative and Quantitative Fit Test?
Qualitative Fit Test procedures rely on a subjective sensation (taste, irritation, smell) of the respirator wearer to a particular test agent.
Quantitative Fit Testing – QNFT uses fit testing instrument(s) to provide quantitative, or numerical measurements of the amount of face seal leakage present when a given respirator is donned by a particular user.
Quantitative Fit Test – QNFT: How is QNFT performed?
Occupational Safety and Health Administration (OSHA) has included the acceptance of respirator fit test protocols in it’s regulations at 29 CFR 1910.134. The OSHA – accepted fit test protocols can be found at 29 CFR 1910.134 appendix A. The American National Standards Institute’s ANSI Z88.10, Respirator Fit Testing Methods provides the step-by-step explanations for conducting the ANSI-accepted fit tests. There are several methods with significantly different protocols for conducting Quantitative Fit Testing – QNFT. While the OSHA regulations and ANSI Z88.10 provide the procedures that must be used to conduct each of the accepted protocols, a general description of the most common methods used in the protocols are provided below for the convenience of the reader.
In order to do these measurements, a small sampling tube is positioned to sample the air within the facepiece of the respirator and attached to a fit testing instrument able to calculate the percentage of particles leaking into the facepiece.
- First, the wearer dons one of the respirator models/sizes provided by the employer that is expected to provide a good fit , in accordance with the manufacturer’s instructions
- The wearer completes a user seal check to confirm that the respirator is properly seated on his/her face
- A fit testing adaptor is affixed to the respirator and the respirator is attached to a fit testing instrument through a small sampling tube positioned within the facepiece
Quantitative Fit Test operator then instructs the wearer to go through a series of prescribed exercises while the attached fit testing instrument measures the ratio of particles both inside and outside of the respirator. From this data, a fit factor for the tested wearer is calculated which will determine whether or not the model, brand, and size of the respirator is suitable (passable) to be used regularly by that wearer.
Quantitative Fit Test NC and SC – QNFT: Fact Sheets
Please contact us for scheduling and pricing at 704-578-6172 or 1-800-424-8633.
Units also available for your in-house testing under a convenient and cost effective rental program.
