When should fit testing be carried out for tight-fitting respirators?

Understanding when and why fit testing is necessary to ensure respiratory protection.

Fit testing must be conducted before a tight-fitting respirator is used in any hazardous environment. Ideally, this should take place at the initial selection stage. If a mask has not yet been tested, or if an operative has not undergone a fit test while using tight-fitting respiratory protective equipment (RPE), a fit test must be carried out immediately.

Ongoing fit testing should also be scheduled at regular intervals. These intervals should be defined by the company health & safety policy and informed by a risk assessment. Additional fit tests should be carried out if:

  • the wearer gains or loses a significant amount of weight,
  • the wearer has major dental work, facial surgery, or sustains a facial injury,
  • there is any change in the type or size of the respirator used.

Key points:

  • Fit testing is required before using RPE in hazardous environments.
  • It should ideally be done at the initial selection stage.
  • Immediate testing is needed if no prior test has been done.
  • Additional testing is needed after significant weight changes, facial alterations, or equipment changes.

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


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