Respirator fit testing NZ

Fit Tests - Everything you need to know

A Respirator fit testing NZ with a tight fit ensures that the wearer's face is properly sealed. If you think about it, a tight-fit mask means it is providing the expected level of protection. On the other hand, a mask that is unfit leaves the wearer exposed as they start to breathe air that is not going through the mask.

In Australia and New Zealand, fit testing is a part of the standard and even includes respirators that are disposable. These tests should be done on a yearly basis, at the very least.

Some of the reasons for performing fit test include:

Whenever the model of the respirator is changed.
Whenever the style and size of the respirator are changed.
Any type of facial change effect the mask fit. This can include dental work or weight fluctuations.

Types of Fit Tests

There are two types of fit tests:

Qualitative Fit Test
Quantitative Fit Test

The Qualitative Fit Test is also called QLFT, while the Quantitative Fit test is referred to as QNFT. Based on the standards, there is no requirement to certify the administrators of the Fit test. The only thing expected from administrators of the Fit test is how to conduct this test and what compromises a failed/invalid test. On top of that, the equipment used for the Fit Test must be properly maintained and cleaned. You can easily find many firms offering Mask fitting Christchurch.

Qualitative Fit Test

The QLFT is used for those respirators which are air purifying and are negative pressure. But there is an additional requirement - It can only be used in those atmospheres in which the hazard level is below 10.

Furthermore, it can also be used with atmosphere supplying and powered respirators.

Some of the accepted test agents for the QLFT are:

Bitrex has a bitter taste. It can be used to test respirators that come with a particulate filter.

Isoamyl acetate has a banana smell and is also an important testing agent. It can be used on those respirators which are fitted with organic-based vapor cartridges.

Saccharin (test agent) has a sweet taste.

In the QLFT test, various exercises are used for a duration of 1 period. These exercises include talking normal breathing, deep breathing, moving head (side), moving head (up/down), and bending over.

Required Fit Factor
A minimum fit factor of 100 is essential for the respirators, which are considered half-mask. On the other hand, a fit factor value of 500 or around 1000 is required for full-face respirators (negative-pressure). For services related to Respirator fit testing NZ and Mask fitting NZ, you can rely on Verum Group.

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Pub: 16 Feb 2022 05:43 UTC
Edit: 16 Feb 2022 05:44 UTC
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