How often should you test a respirator for proper fit?

Testing a respirator for proper fit each time it is put on is essential to ensure that it provides the necessary protection against airborne contaminants. This practice is crucial because factors such as facial hair, changes in the wearer's weight, or modifications to the mask can affect the integrity of the seal between the respirator and the face. A proper fit test helps confirm that the respirator will function as intended, minimizing the risk of inhaling harmful substances.

By conducting a fit test every time the respirator is donned, users can verify that there are no leaks and that the mask sits correctly on their face. This practice supports compliance with safety regulations and guidelines, ensuring the health and safety of individuals exposed to potentially hazardous environments.