The test that checks whether a respirator seals correctly on a person's face is called a:

The test that checks whether a respirator seals correctly on a person's face is called a:

• A. Fit test
• B. Function test
• C. Pressure test
• D. Length test

Answer: (A)

A respirator must seal tightly to the face to prevent contaminated air from seeping in around the edges. The test that verifies whether that seal is being made correctly is a fit test. During a fit test, the wearer dons the respirator and performs typical movements and talking to simulate real use while a test agent is detected or measured. If there are leaks, the test reveals a poor fit; if the seal holds, it indicates a good fit. There are two main approaches: a qualitative fit test, which uses a taste or odor indicator, and a quantitative fit test, which uses instruments to measure the amount of leakage. This is different from a quick seal check done before use or from tests that assess the respirator’s function or the pressure performance, as those do not directly measure how well the mask seals to the wearer’s face.

A respirator must seal tightly to the face to prevent contaminated air from seeping in around the edges. The test that verifies whether that seal is being made correctly is a fit test. During a fit test, the wearer dons the respirator and performs typical movements and talking to simulate real use while a test agent is detected or measured. If there are leaks, the test reveals a poor fit; if the seal holds, it indicates a good fit. There are two main approaches: a qualitative fit test, which uses a taste or odor indicator, and a quantitative fit test, which uses instruments to measure the amount of leakage. This is different from a quick seal check done before use or from tests that assess the respirator’s function or the pressure performance, as those do not directly measure how well the mask seals to the wearer’s face.