CSA Z94.4.1

CSA Z94.4.1

Respirator Fit Testing

Respirators are donned by personnel and the quality of fit to the person’s face is assessed while performing several activities. A fit factor is reported for each activity and each person tested to determine pass/fail. Fit testing can also be performed on a bivariate panel of up to 25 volunteers to determine to ensure broad applicability of the respirator.