What is qualitative fit testing? Fast and economical fit testing.
There are two types of fit tests: qualitative and quantitative. Qualitative fit testing is a pass/fail test method that uses your sense of taste or smell, or your reaction to an irritant in order to detect leakage into the respirator facepiece. The OSHA protocols include saccharin, isoamyl acetate (banana oil), Bitrex and irritant smoke.
For a saccharin or Bitrex test, an administrator challenges a subject wearing a respirator with a test aerosol. The subject dons the respirator and a fit test hood. The test aerosol (saccharin or Bitrex) is sprayed inside the hood while the subject performs prescribed exercises. If the subject can taste the test agent, the respirator fails the test and another respirator must be tested. Prior to conducting the test, the administrator must determine if the subject can detect the test agent. If the subject can’t detect the test agent, another one that can be detected must be used.
The qualitative fit test procedure requires about 15 to 20 minutes to administer. Qualitative fit testing may be used for half-face and full-face negative pressure (demand mode) air-purifying respirators (APR) that must achieve a fit factor of 100 or less, as long as the respirators will be worn in work areas where it is known that concentrations of a contaminant will not be more than 10 times the permissible exposure limit (PEL).
ADVANTAGES OF QUALITATIVE FIT TESTING:
- Low cost
- Simple pass/fail results
- Multiple employees can be tested at the same time
DISADVANTAGES OF QUALITATIVE FIT TESTING:
- Chance of employee deception or bluffing
- Limited protection-factor verification (maximum fit factor of 100)
What is quantitative fit testing? Taking precision to the next level.
Fit tests are either quantitative or qualitative. A quantitative fit test uses a machine to provide a numeric assessment of how well a respirator fits a particular individual by measuring the actual amount of leakage into the respirator. A ...
What does the Per-Person Respirator Fit Testing Supplies include?
The Per-Person Respirator Fit Testing Supplies include all of the consumable supplies you will need to conduct 1 respirator fit test: -Single-use fit testing hoods (1 hood per employee, so no need to sanitize) -Bitrex sensitivity solution -Bitrex fit ...
Do Powered Air-Purifying Respirators (PAPRs) Require Fit Testing?
The answer to this question depends on the type of facepiece that the respirator has. Any facepieces that form a tight seal to the wearer’s face, e.g., half-masks and full facepieces, must be fit tested. Loose-fitting PAPRs, in which the hood or ...
What does the Respirator Fit Test Starter Kit include?
The Respirator Fit Test Starter Kit includes reusable items to administer a qualitative respirator fit test. It includes two high-quality, reusable nebulizers, one replacement parts kit, easy to follow respirator fit testing instructions developed by ...
What is a respirator fit test?
A respirator fit test is a method used to verify if a particular size and model of a respirator provides an adequate seal on an individual's face. An appropriately fitted respirator is crucial to prevent exposure to hazardous substances in the air, ...