AS/NZS 1715: Fit Test and Daily Fit Check for Australian Teams
A fit test is a formal, objective verification that a particular respirator model and size seals your face, and a fit check is a quick, user-performed seal check you must do every time you put the respirator on. One is a regulatory requirement you complete before you rely on a tight-fitting respirator for the first time, or whenever the make, model or size changes. The other happens every single time you don the mask. Skip either step and you cannot be confident the respirator is doing its job.
TL;DR:
Fit tests are mandatory before first use or model changes and must be conducted by a competent professional, with records kept for compliance.
A fit check is a quick, daily procedure that confirms proper donning, but it cannot replace the thorough validation provided by a formal fit test.
Quantitative fit testing provides a numeric protection level, with a minimum fit factor of 100 for half-face and 500 for full-face respirators, unlike qualitative testing.
If a fit test fails, trying different sizes or models is necessary, and alternative equipment like powered air-purifying respirators should be considered.
On-site testing paired with hands-on training ensures proper fit and donning technique, especially critical for remote or industrial workplaces.
Table of Contents
Fit test versus fit check: the detailed difference
A fit test validates something specific: that this exact make, model, style and size of respirator seals against your face well enough to give you the protection factor it’s rated for. It’s a formal assessment, usually run by someone trained to administer it, and it produces a result you can record. A fit check confirms something narrower: that you’ve put that same respirator on correctly, today, for this task.
Neither one covers the other’s job. A systematic review of fit testing versus fit checking found that fit testing is the more reliable method for confirming a respirator actually protects the wearer, and that the strongest programmes combine formal fit testing with routine fit checking and proper training, rather than leaning on one alone. That combination matters because a respirator can pass a fit test in the morning and still leak badly if it’s donned poorly that afternoon.
The timing differs too:
Fit test: once before first use, and again whenever you change respirator make, model or size.
Fit check: every single time you put the respirator on, no exceptions.
Treat a fit test as the foundation and the fit check as the daily maintenance that keeps that foundation useful.
Formal fit-testing methods: qualitative vs quantitative
There are two recognised approaches to formal fit testing, and which one applies depends on the respirator and the protection level you need.
Qualitative fit testing (QLFT) relies on your senses: a test agent, often a bitter or sweet aerosol, is introduced near the respirator, and you either detect it (fail) or don’t (pass). It’s a pass/fail method, limited to half-face respirators.
Quantitative fit testing (QNFT) uses an instrument to count particles inside and outside the mask, producing a numeric fit factor rather than a sensory judgement.
A fit factor of 100 for half-face respirators and 500 for full-face respirators is the recognised minimum for a pass under quantitative testing, according to WorkSafe WA’s fit testing guidance. Full-face respirators, and any respirator relied on for an assigned protection factor above 10, generally need quantitative testing because a taste or smell test can’t produce an objective number for that level of protection. QLFT is cheaper and quicker to run, which suits smaller programmes using half-face disposables, but it can’t give you the repeatable, instrument-based confidence that QNFT does.
How to perform a fit check every time you don the mask
A user seal check takes seconds, and it has to happen before you walk into any hazardous area, not just when you remember.
Place the respirator over your nose and mouth, following the manufacturer’s donning sequence exactly.
Cover the exhalation valve or filters with your hands and exhale gently: air should not leak out around the seal (positive pressure check).
Cover the filters or inlets and inhale gently: the mask should collapse slightly against your face with no air rushing in around the edges (negative pressure check).
If either check fails, adjust the straps and nose bridge and repeat before entering the hazard area.
Facial hair at the sealing surface, creases in the mask, jewellery, and a poorly shaped nose clip are the usual culprits behind a failed check. A seal check guide from Washington State’s health department is blunt about this: a seal check is not a fit test and should never be treated as a substitute for one, but it’s still mandatory before every single use.
Pro Tip: Do the seal check with your eyes closed. It’s easier to feel a leak than to see one.
When fit testing is required and how records should be kept
AS/NZS 1715 sets the framework most Australian employers follow for tight-fitting respirators, and it’s specific about triggers, not just timing.
Fit testing is required before first use of a tight-fitting respirator, whenever the make, model or size changes, and again on a risk-based schedule, commonly annually.
Facial changes, such as significant weight change or dental work, are also recognised triggers for retesting.
Employers are responsible for keeping fit test records and covering the cost of testing.
State regulators reinforce this. SafeWork NSW’s guidance is clear that a fit test must be run by a competent person, someone who understands the method well enough to spot an invalid result, though that competence doesn’t always require a specific formal certification. It’s demonstrated knowledge and practical skill that counts.
If you fail a fit test: what happens next
A failed fit test means gross leakage, and that respirator cannot be relied on for that hazard, full stop, according to SafeWork NSW.
Try a different size or a different make and model before assuming tight-fitting respirators won’t work for you.
If two reasonable attempts still fail, look at alternative respiratory protective equipment that doesn’t depend on a tight face seal, such as powered air-purifying respirators with hoods.
Record every result, arrange retraining on donning technique where needed, and retest once a new option is fitted.
A failed test is useful information, not a dead end. It tells you exactly where the current setup falls short.
Practical tips, common pitfalls and where training earns its keep
The systematic review noted earlier makes a point worth repeating in practice: the moment of fit testing is also a teaching moment. When someone runs your fit test properly, they can watch how you don the respirator and correct bad habits on the spot, which is exactly where most day-to-day failures start.
The recurring pitfalls are predictable: facial hair crossing the seal, forcing an ill-fitting mask on because it’s the only one in the cupboard, and skipping the seal check because “it fit fine yesterday.” None of these are hard to fix once someone points them out, which is the real value of pairing formal testing with hands-on training rather than treating fit testing as a box-ticking exercise.
Prime First Aid and Training builds that pairing into its Respirator Protective Equipment Fit Test service, delivered on-site so your team is trained on the exact respirator they’ll wear on shift, not a generic demonstration model.
Pro Tip: Ask your trainer to demonstrate the seal check on your own respirator, not a sample unit. The fit varies enough between models that watching someone else’s mask teaches you very little about yours.
Why testing and checking both belong in your safety programme
Fit testing validates the equipment for the person. Fit checking maintains that validation every time the mask goes on. Neither replaces the other, and treating a fit test as a once-off compliance formality misses the point entirely.
If you manage a safety programme, the practical fix is simple: schedule fit tests on the AS/NZS 1715 triggers, and build the seal check into your pre-entry routine so it becomes automatic rather than optional.
— Vapour
How Prime First Aid and Training can help you comply and train your team
Getting a respirator fitted correctly and keeping your team confident about wearing it shouldn’t mean chasing a testing provider between shifts or squeezing training into a Saturday you don’t have. Prime First Aid and Training runs its Respirator Protective Equipment Fit Test on-site, wherever your crew is working, and pairs it with practical training on donning technique so the fit test result actually holds up on the job.
That on-site delivery matters most in remote or industrial settings, where sending staff off-site for testing costs a full shift, not just an appointment.
Fit testing runs against the exact respirator make and model your team will wear, not a generic sample.
Training content is tailored to your industry’s specific hazards rather than a one-size-fits-all module.
Certificates and results are issued promptly so your compliance records stay current.
Service | Delivery | Outcome |
On-site, tailored to your workplace | Documented fit test result for your record-keeping | |
On-site, paired with RPE training where relevant | Verified hearing protection fit |
Trainers bring industry-relevant experience, a positioning Prime First Aid and Training states on its own site, which shows up in how quickly they spot the donning habits that cause seal failures. Book a Respirator Protective Equipment Fit Test directly, or browse the full course listings if you’re also due for confined spaces or heights compliance training.
Authoritative standards and guidance to check
For further reading, check AS/NZS 1715 guidance from WorkSafe WA, SafeWork NSW’s fit testing resource, and the PMC systematic review, plus wood dust exposure standards for related workplace hygiene context. These are follow-up reading, not a substitute for professional advice.
Sources
FAQ
What are the two types of fit tests?
The two recognised formal methods are qualitative fit testing (QLFT), a pass/fail sensory test limited to half-face respirators, and quantitative fit testing (QNFT), which uses an instrument to produce a numeric fit factor. WorkSafe WA sets minimum fit factors of 100 for half-face and 500 for full-face respirators under QNFT.
What happens if you fail a fit test?
A failed result means the respirator leaks too much to rely on for that hazard, so you should try a different size or model before retesting. SafeWork NSW notes that employers must record the result and offer an alternative or further training rather than allowing continued use of the failed fit.
How do you undertake a fit check?
A fit check, or user seal check, involves covering the exhalation point and exhaling gently to check for outward leaks, then covering the inlets and inhaling to check the mask collapses slightly with no air rushing in. It takes seconds and must be repeated every time the respirator is donned, as described in seal check guidance.
What are the two main fit testing methods?
Qualitative (QLFT) and quantitative (QNFT) are the two main methods, distinguished by whether the result comes from your senses or from an instrument reading. QNFT is required for full-face respirators and higher protection factors, while QLFT suits half-face respirators in lower-risk settings.
Is a fit check the same as a fit test?
No, a fit check is not a substitute for a fit test. A fit test formally validates that a specific respirator model and size seals your face, while a fit check simply confirms you’ve donned that already-tested respirator correctly on a given occasion.
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