NWOH Fit Testing

Quantitative Respirator Fit Testing

NWOH was established in January 2014 as a supplier of occupational hygiene services to the resource, commercial and local government sectors in the Pilbara Western Australia. Services include mine site health risk assessment, exposure monitoring (atmospheric contaminants and occupational noise), noise surveys, asbestos surveys, asbestos control monitoring and respirator & EAR plug fit testing.

The filter in a respirator is resistant to air-flow so if there’s a gap then some air will follow the path of least resistance through the gap. If someone has facial hair and they wear a close face fitting respirator it may look like it’s fitting ok but we’re dealing with very small particles and fibres that are so small possibly thousands are able to flow past gaps between whiskers. It's hard to say exactly how much can bypass the filter but that's not really important because the rule is As Low As Reasonably Practicable (ALARP). There are too many variables that can't be adequately quantified so we have to adopt a cautious approach. It’s considered reasonable and practicable to be clean shaven and participate in respirator fit testing but that’s only one of many methods that may need to be implemented.

NWOH Fit Testing

Quantitative Respirator Fit Testing

About Me

NWOH was established in January 2014 as a supplier of occupational hygiene services to the resource, commercial and local government sectors in the Pilbara Western Australia. Services include mine site health risk assessment, exposure monitoring (atmospheric contaminants and occupational noise), noise surveys, asbestos surveys, asbestos control monitoring and respirator & EAR plug fit testing.

Service Offering

FAQ

The filter in a respirator is resistant to air-flow so if there’s a gap then some air will follow the path of least resistance through the gap. If someone has facial hair and they wear a close face fitting respirator it may look like it’s fitting ok but we’re dealing with very small particles and fibres that are so small possibly thousands are able to flow past gaps between whiskers. It's hard to say exactly how much can bypass the filter but that's not really important because the rule is As Low As Reasonably Practicable (ALARP). There are too many variables that can't be adequately quantified so we have to adopt a cautious approach. It’s considered reasonable and practicable to be clean shaven and participate in respirator fit testing but that’s only one of many methods that may need to be implemented.