Why Must Respiratory Protective Equipment Be Face Fit Tested?
Protecting Workers: The Role of Face Fit Testing
Workplace safety depends on effective respiratory protective equipment (RPE), especially in industries with airborne hazards. However, wearing a mask alone isn’t enough—it must fit properly to provide full protection. Face fit testing ensures that RPE fits the wearer correctly, creating a secure seal around the face. If a mask doesn’t fit properly, harmful particles can bypass the filter and expose the wearer to dangerous contaminants.
Why is It Important?
Ensures Maximum Protection
A correctly fitted mask significantly reduces the risk of inhaling hazardous substances, including dust, fumes, and harmful aerosols. Even a small gap can undermine the effectiveness of the mask.
Legal Compliance
In many countries, including the UK, face fit testing is not just recommended—it is a legal requirement under regulations like COSHH (Control of Substances Hazardous to Health). Failure to comply can lead to hefty fines and legal issues.
Enhances Comfort and Usability
A mask that fits well is more comfortable to wear, reducing the likelihood of workers removing or adjusting their masks, which can lead to potential exposure.
Protects Against a False Sense of Security
Workers may believe they are protected when they are not. Face fit testing eliminates this risk by verifying that the equipment functions as intended.
When Should Face Fit Testing Be Conducted?
A face fit test should be conducted in several key scenarios to ensure the effectiveness of respiratory protective equipment (RPE). Initial fitting should be conducted before RPE is used for the first time to confirm a proper seal and protection. If there are changes in equipment, such as the introduction of a different make or model, a new fit test is required to ensure compatibility with the wearer’s face. Additionally, physical changes in the wearer, including weight fluctuations, dental work, or any alterations to facial structure, can impact the fit and necessitate a retest. Lastly, regular re-testing is recommended at least annually or as specified by regulatory guidelines to maintain compliance and ensure continued protection.
How to Conduct a Face Fit Test
Face fit testing should be carried out by a competent person who is appropriately trained, qualified, and experienced. The British Safety Industry Federation (BSIF) has a fit tester scheme that can help verify competency. During the test, it is crucial that the wearer is clean-shaven if using a tight-fitting mask, as facial hair can prevent a proper seal, allowing contaminated air to leak in. For those unable to shave due to religious or other reasons, alternative respiratory protective equipment (RPE) that does not rely on a tight face seal should be used.
To maintain hygiene during testing, the fit tester must clean all equipment between tests. This includes disinfecting the inside and outside of the respirator, the fit testing hood (for qualitative tests), and any tubing used in quantitative tests. Additional components such as fit testing adaptors, sampling probes, inner masks, and reusable filters should also be sanitised with disinfectant wipes or a suitable cleaning solution. Spare tubes should be available to allow used ones to dry properly.
For guidance on correctly wearing and checking respirators, instructional videos can help ensure users select the right mask, fit it properly, and verify an effective seal before use.
