3M Respirator Fit Testing

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  • Fit testing is required in the US by the Occupational Safety and Health Administration (OSHA) before a user wears a mandatory respirator on the job, and must be assessed at least annually. In addition, fit tests should be performed:
     

    • Whenever a different size, style, model or make of respirator is used.
    • When any facial changes occur that could affect fit, such as significant weight fluctuation or dental work.
  • OSHA doesn’t require fit test administrators to be certified, just to know how to conduct a test, recognize invalid tests, and properly clean and maintain equipment.

    Learn more about the types of fit testing and get more fit testing resources at our online Center for Respiratory Protection.