When a person fails the fit test, how do I know if the problem is the way the mask is worn, the size of the mask, a bad filter, or a defective mask?
The reason for a poor fit factor can be difficult to determine. The experience of the test operator will often determine how quickly the problem is resolved. Performing a Zero Check and Max. Fit Factor Check as described in the PORTACOUNT Operation & Service Manual will tell you if the problem is in the PORTACOUNT or the mask. If you are using a shared test respirator that has a history of fitting well, you know that the problem is either donning technique or improper size. If you test employees in their own respirator using a fit test adapter, you could also have a defective mask. Trial and error is often the only recourse.
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