Fit Testing

We have 20 trained and experienced fit testers plotted across the country to provide you with a personalised and professional service covering all of your fit testing needs.

Qualitative Fit Testing

Qualitative fit testing (QLFT) is a pass/fail test based on the wearer’s subjective assessment of any leakage through the face seal region by detecting the introduction of bitter- or sweet-tasting aerosol as a test agent. QLFT methods are suitable for disposable and reusable half masks; they are not suitable for full-face masks. Although this type of test is based on subjective detection and response by the wearer of the RPE, it is important that it is administered by a fit tester competent in using this method.

Our experienced dental team, with a wealth of dental experience are now delighted to be able to offer a fit test service for FFP3 , FFP2 and FFP1 masks.

Using the 3M qualitative testing kit, we are able to arrange appointments at your practice to fit test your staff, with your own masks.

As we know, no two faces are the same and often we find, not one style “fits all” we have a variety of masks, we can also “fit test ” your team with, if you need alternatives. You will be able to buy a small supply on the day to get your team under way, being able to then source from your preferred consumables supplier thereafter.

Several of our fit testers are fit2fit accredited.

Qualitative Fit Testing (QLFT) at your practice

We believe we can offer a great personal service direct to your practice. Contact us for prices and to get booked in.

Prices start at £150 to come to you.

Qualitative Fit Testing (QLFT) at our Reading office

We hold fit testing appointments every Tuesday for £25 + VAT per person. Book your appointment now at our covid safe Head Office  by filling in the enquiry form below.

Your Details

Quantitative Fit Testing

Quantitative face fit testing eliminates the guesswork associated with error-prone qualitative fit test methods. Using the PortaCount Pro Respirator Fit Tester 8030 fit tester, we can now quantitatively fit test so many types of respirators – gas masks, SCBAs, respirators. If the mask requires fit testing, count on the PortaCount Pro fit tester to provide the fastest and easiest HSE (UK) and OSHA (US)-compliant fit test method.

Book your appointment now at our Covid safe Head Office  by filling in the enquiry form below.

£60 + vat plus any mask purchase – or bring your own.

Or arrange for one of our fully trained team to come to you – prices start from £300 for up to 5 people plus travel.

Your Details


Product Quality & Recall Policy

Cavity undertakes to supply only safety equipment and related services that fully comply with the standards and regulations and claims made relating to those products and related services. Where appropriate, Cavity will maintain up to date technical files and associated documentation to ensure that regulatory compliance information can be supplied upon request. We source products from external organisations which hold technical files relating to the products being offered, we will request confirmation that these files are current, complete, contain appropriate conformity assessment information and, where relevant, regulatory compliance certificates and will take all necessary steps to confirm the validity of the compliance documentation held by that external supplier in respect of the products being sourced. Where services are provided related to safety equipment sourced from external organisations, we will maintain approval from the manufacturer that the services provided are assessed and approved by the external organisation. Our full Quality Management policy is available on request.

We maintain a full product recall policy with batch/lot numbers to provide complete product traceability. Complying with BSIF standards PAS7100.

Fit test kits

Are you a trained fit tester for your practice? Hire our fit test kits for just £75 plus VAT for one week. Also available to purchase at £220.20 including VAT and postage. Get in touch with our Bookings Department on 0118 966 8291 for more information.


We have the following masks and accessories for sale:

GVS Elipse S/M or M/L

GVS filters

Download EU Conformity

Download Technical Data Sheet

Stealth S/M or M/L

Stealth filters

Download Stealth Mask & Filter EU Conformity:

Download Technical Data Sheet:

3M 4251+

Download EU Conformity:

Download Technical Data Sheet:

3M 1863+

Download EU Conformity:

Download Technical Data Sheet:

3M 8833

Download EU Conformity:

Download Technical Data Sheet:


Fit2Fit: Train the Trainer

Price: £175.00 (When booked alongside our RPE Course you pay £300)

Book them either back to back or we recommend a month or two after you have had some practical experience ‘in the field’ and return to hone your skills and knowledge.

Train the Trainer Refresher and RPE Inspection Course

This course is suitable for people who have passed training with a few months experience to have a refresher. Hands on practical and RPE training. RPE inspection training & qualitative fit testing & competency assessments. This is a one day course using the Qualitative fit testing method and run by our accredited fit testers. This course will provide fit test revision and practical training.

Improve your knowledge and stay up to date with the latest in fit testing.

Price: £175.00 (When booked alongside our Fit2Fit Course you pay £300)

Book them either back to back or we recommend a month or two after you have had some practical experience ‘in the field’ and return to hone your skills and knowledge.

"Cavity has a solid foundation providing professional and diligent locum Dental Nurses to general practices, prisons and hospitals. . I enjoy meeting different people and developing new friendships at various different practices. . I feel supported by a great Area Manager. No 2 days are the same being a locum. And finally - but very importantly - the financial rewards are AMAZING."

Caroline, Surrey

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