Fit Testing NZ

Fit testing is a process used to check whether a particular respirator forms an effective seal against an individual wearer’s face. A respirator cannot provide its intended protection if contaminated air can leak around the face seal.

Qualitative fit testing (QLFT) is a pass/fail test. The wearer is exposed to a test agent with a recognisable taste or smell. If the wearer detects the agent while wearing the respirator, the respirator has failed the test.

Quantitative fit testing (QNFT) uses specialised equipment to measure leakage around the respirator and produces a numerical fit factor.

Under AS/NZS 1715 guidelines, fit testing must be completed at least annually (every 12 months), or sooner if a worker experiences significant weight changes, dental work, or facial scarring.

No. Facial hair breaks the seal of tight-fitting respirators, allowing particles to bypass the seal of the mask. For employees with religious or medical exemptions for facial hair, please contact us to discuss positive-pressure PAPR hood alternatives.

They are different testing methods rather than simply two levels of the same test. WorkSafe NZ states that only quantitative fit testing provides objective, accurate and reliable results. The appropriate method depends on the respirator, workplace hazards and required protection.

Quantitative testing is particularly important where a numerical measurement of the seal is required, including certain full-face respirators and higher-protection applications. The appropriate method should be determined against the respirator type, hazard and applicable requirements.

Qualitative testing is commonly used for filtering facepiece respirators and half-face respirators, subject to the applicable testing protocol and conditions.

Yes. Disposable P2 filtering facepiece respirators are tight-fitting respirators and can be fit tested. WorkSafe specifically identifies a disposable P2 respirator as the minimum RPE for asbestos-related work.

Yes. Tight-fitting P3 respirators should be fit tested to the wearer and the specific respirator model/size.

WorkSafe recommends that PCBUs ensure RPE is fitted correctly through fit testing. Fit testing should be undertaken when RPE is first provided and repeated at least annually, or when circumstances occur that could affect the seal.

As a general NZ workplace practice, at least annually. Testing should also be repeated when there is a significant change in facial characteristics, such as substantial weight change or dental work, or when a different respirator model, size or style is introduced.

Yes, potentially. Fit testing is specific to the wearer and the particular respirator/model/size being used. If you change to a different model, size, style or manufacturer, a new fit test should be conducted.

A typical individual fit test takes about 20 minutes, depending on the testing method and circumstances.