14
Visual Examinations
G1 Powered Air-Purifying Respirator (PAPR)
US
3.1.2 Qualitative Test
Only validated protocols are acceptable. The respirator must pass a test designed to assess a fit factor
of at least 2000 with the blower assembly power off and at least 10000 with the blower assembly
power on.
4
Visual Examinations
WARNING!
Do NOT examine the respirator before it is decontaminated, cleaned, and disinfected if there is a
risk of exposure to contaminants. Obey the applicable decontamination procedures, clean and
disinfect the respirator, then examine it.
If the respirator shows any of the conditions listed in Section 4 "Visual Examinations", remove the
respirator from service and return it to an MSA trained repair technician.
Do NOT substitute, modify, add, or omit parts. Use only exact replacement parts in the configura-
tion specified by MSA.
Failure to obey these warnings can result in serious injury or death.
Do a visual inspection upon receipt, and before and after each use.
Examine the entire respirator after it is decontaminated, cleaned and disinfected.
4.1
All Components
Examine all components for deterioration, dirt, cracks, debris, tears, holes, stickiness, heat- or chem-
ical-related damage, or other signs of damage.
Make sure that the respirator is complete and assembled correctly. Refer to Section 6 "Preparing for
Use".
Do all of the following component-specific inspections.
4.2
G1 Facepiece
Examine the lens for cracks, scratches, deformation, or color changes.
Make sure that the facepiece rubber has a tight seal and is attached to the lens ring tightly.
Make sure that the exhalation valve is clean and operates easily. Make sure that the valve moves off
the seat and returns when released (from inside the facepiece).
Examine the facepiece inlet for damage. Make sure that the inhalation valve is in position.
Examine the nosecup to make sure that the check valves or air guides are in position. Make sure that
the nosecup is attached to the component housing tightly.
Examine the nosecup, inhalation port, inhalation valves, exhalation valves, and exhalation port for
dust, Kevlar fibers, and other debris. If necessary, use the instructions in Section 10 "Cleaning and
Disinfecting" to clean these components.
Make sure that the straps for the head harness are not torn, cut, worn, fraying, or missing buckles.
4.3
APR Adapter
Examine the APR adapter for cracks, scratches, deformation, or color changes.
Examine the adapter gasket (green), O-ring, and seal ring for wear or damage.
Remove the adapter cover to examine the exhalation valve. Make sure that the valve moves off the
seat and returns when released.
Examine the Rd 40 threads for damage.
