A face fit test is a procedure that ensures the Respiratory Protective Equipment (RPE) you use fits correctly to protect against hazards identified in a risk assessment. As detailed in the CoSHH (Control of Substances Hazardous to Health) regulations, it is a legal requirement that those using tight-fitting RPE must be fit tested by a competent person.
Qualitative testing assesses the effectiveness of a tight-fitting facepiece, such as a respirator, to ensure that it properly seals to the wearer’s face and provides the intended level of protection. Unlike quantitative testing, qualitative testing relies on the wearer’s subjective response (taste) to the test agent, and it is a pass/fail test.
Testing Process
The test itself involves wearing a mask or respirator and performing a series of exercises to ensure that the mask fits correctly. These exercises may include normal breathing, deep breathing, moving your head from side to side, up and down, bending at the waist, and talking.
The tester will decide which tests to conduct based on what type of mask or respirator you have.
Qualitative Fit Test
There are two common methods of qualitative tests, the Bitrex Test and the Saccharin Test.
Bitrex Test: This involves the introduction of a bitter-tasting aerosol (Bitrex) into the hood while the wearer performs a series of exercises. If the wearer can taste the bitter solution, it indicates that there is a leakage in the mask.
Saccharin Test: Similar to the Bitrex test, but it uses a sweet-tasting aerosol (saccharin) instead.
If the wearer can taste the sweet solution, it suggests that there is a leak in the mask.
Test Results
After the test, the tester will inform you if you have passed or failed. If you pass, you will gain a certificate confirming your mask’s suitability and the test date. This certificate is valid for two years and should be kept in a safe place. If you have failed, the tester will provide you with guidance on how to improve the fit of your mask or recommend a different type of mask that may be more suitable for you.
Overall, face fit testing is an essential step in ensuring your safety in the workplace. It is a simple and quick process that can provide peace of mind and protect you from harmful substances.