What is fit testing and why is it important when wearing a mask or respirator?

Understanding how fit testing ensures proper respiratory protection

Fit testing is a method used to ensure that the respirator or mask being worn provides the level of protection it is designed to deliver. While respirators are made to suit most adults and some younger users, each person’s face is unique in size and shape. Much like shoe sizing, it’s essential to find the right fit for each individual to ensure safety and effectiveness.

A fit test checks the seal between the face and the mask, confirming that the respirator fits correctly and offers adequate protection. The result of a fit test is a straightforward pass or fail. This test must be conducted by a trained and competent individual who has the necessary expertise. During the test, they will also advise on how to correctly put on and wear the mask, helping to ensure ongoing protection in real-world use.

Key points:

  • Fit testing identify s whether a respirator properly seals to the wearer’s face.
  • Each person has a different face shape, so one-size-fits-all does not apply.
  • A proper fit is essential for the respirator to work as intended.
  • The test provides a pass/fail result and must be carried out by a trained individual.
  • The tester will also demonstrate correct fitting and usage techniques.

If you need further support, please contact our Technical Support Team using the email: technical@jspsafety.com or contact us via WhatsApp.


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