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Respirator Fit Testing & Protective Equipment

Keep respiratory hazards out with protective equipment

In some industries where lung toxic substance inhalation occurs, lung disease is the number one work-related illness.1 Inhalation of other types of toxic substances may seriously affect other critical body systems. And in work environments that expose employees to respirable hazards, it’s not enough for your workers to simply wear the equipment. It has to fit right to be effective.

We make sure your workers get proper protection

We offer two mask fit testing options to protect your employees against harmful substances and to ensure that your company is compliant with occupational health and safety regulations.

Qualitative Respirator Fit Testing

Qualitative Mask Fitting is a method of testing requiring the employee to wear the mask and then to attempt to detect a bitter or sweet odour. This odour is injected into a test booth or hood while the employee is wearing his/her mask. If the client cannot detect the odour, the test is considered a pass. This type of testing can only be performed on disposable and half-face masks.

Quantitative Respirator Fit Testing

Produces a numerical measurement of the ‘fit factor’ of a particular respirator. A particle counting device (such as a TSI Portacount Plus) measures the concentration of microscopic particles that exist in ambient air to measure the ‘fit factor’ directly. The measurement is made while the person performs dynamic movements and/or breathing exercises resembling those experienced in the workplace in order to stress the respirator seal. This type of testing can be performed on all types of masks.


1. American Lung Association. (2008). Occupational Lung Diseases. American Lung Association Lung Disease Data: 2008.