Respirator Fit TestingOntario Environmental & Safety Network Ltd.
There are two industry-accepted types of respiratory fit tests:
A qualitative fit test relies on your sense of taste and smell to detect leakage of an odour or irritant into the respirator face piece. Qualitative fit testing does not quantify the amount of leakage.
A quantitative fit test requires the use of a probe which is attached to a specialized machine that is capable of measuring generated aerosols, ambient aerosols, or controlled negative pressure. The probe is inserted directly into the respiratory face piece or respiratory cartridge. This type of fit test is most commonly used for
half-mask, elastomeric, and filtering respirators (ex. N95s).
An individual should consult with their physician before wearing respiratory protection. Individuals with impaired lung functioning may be physically unable to wear a respirator. During the fit test, the individual should wear the exact model, make, and size of respirator they will be wearing in the field. If an individual typically
wears glasses (safety or prescription) or hearing protection while wearing their respiratory protection, then these items should also be worn during the fit test. A worker should ensure that their respiratory protection is fit tested at least once every two (2) years to ensure their mask fits properly. Re-testing should occur if an
individual has lost weight, or has physically changed in a manner that may affect the seal between the mask and their face.
If you are interested in booking a respirator fit test, please select the desired service and appointment time using the scheduling assistant located below.
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