Correct fitting and fit testing of filtering face piece respirators
Fitting the mask
Respirators are available in different designs and sizes. Some are valved and some unvalved – both options provide a high level of protection when worn correctly.
- Fit testing is a means of assessing how well a respirator seals to a face
- It has to be an individual test because one model will never fit all and every face is different
- Fit tests may fail, and protection will be lost, if the mask isn’t being worn properly.
- Sometimes a mask simply won’t fit an individual, but often a better fit can be achieved by taking more care when putting it on. Wearers must be clean-shaven to get a good fit with a respirator.