12 P/N 595390-01 Rev B 202003
The full facepiece is available in specific models and sizes. Before use, the facepiece must be properly fitted as
outlined in “Appendix A: Facepiece Fitting” on page 27.
Fit testing per OSHA Standard 29 CFR Part 1910.134 Appendix A, or ANSI/AIHA/ASSE Z88.10-2010, requires testing
in the negative pressure mode using Quantitative Fit Test (QNFT) protocols deemed acceptable by those standards.
For quantitative fit testing, 3M Scott Fire & Safety facepieces require use of a Fit Test Adapter or equivalent and
appropriate negative pressure testing equipment. A Mask Seal Kit may also be required to attain a proper fit. See
“Appendix A: Facepiece Fitting” on page 27.