P/N 595373-01 Rev C 202004
47
APPENDIX A
AIR-PAK X3 PRO MODELS
The 3M Scott Air-Pak X3 Pro SCBA (CGA & Snap-Change) are available in the following pressures:
• 2.2 SCBA (2216 psig operating pressure)
• 4.5 SCBA (4500 psig operating pressure)
• 5.5 SCBA (5500 psig operating pressure)
The pressure rating is identified by a large label with black printing on the pressure reducer; the word SCOTT is printed
vertically, and the pressure number (2.2, 4.5, or 5.5) is printed at the bottom. In addition, the remote pressure gauge
mounted on the shoulder harness is imprinted with the operating pressure on the face of the gauge.
The basic Air-Pak X3 Pro CGA & Snap-Change SCBA models are equipped with an aluminum backframe.
All Air-Pak X3 Pro CGA & Snap-Change respirator models are certified by the National Institute of Occupational
Safety and Health (NIOSH) as pressure-demand SCBAs. For more information, see "Appendix A: Air-Pak X3 Pro
Models” on page 47. See the NIOSH Approval Label supplied with these instructions for cylinder and valve assemblies
approved for use with specific 3M Scott Fire & Safety models.
2.2 SCBA
• Use only with cylinder and valve assemblies with a full rated service pressure of 2216 psig
• Certified by NIOSH as a 30-minute rated respirator.
4.5 SCBA
• Use only with cylinder and valve assemblies with a full rated service pressure of 4500 psig
• Certified by NIOSH (depending on the cylinder and valve assembly installed) as a
– 30-minute rated SCBA
– 45-minute rated SCBA
– 60-minute rated SCBA
5.5 SCBA
• Use only with cylinder and valve assemblies with a full rated service pressure of 5500 psig
• Certified by NIOSH (depending on the cylinder and valve assembly installed) as a
– 30-minute rated SCBA
– 45-minute rated SCBA
– 60-minute rated SCBA
– 75-minute rated SCBA
The time duration ratings are approval agency classifications and are not intended to indicate the actual duration a
user may achieve. For more information, see "Appendix E: Service Life” on page 55.
NIOSH approval and NFPA compliance are granted to respiratory protection equipment made up of specific
combinations of parts or assemblies that have been successfully tested to the performance standards established by
the approval agencies.
202004
P/N 595373-01
Rev C
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