(1) NOTE: For any trainee who does not have documented medical clearance to
wear an air-purifying respirator, this performance test can be performed
with the removal of the cartridges/filter elements from the respirator facepiece
after step 4 below. Step 9, the negative pressure user seal check, will
be performed by placing the palms of the hands over the inhalation valve
inlets and inhaling slightly for a count of 10.
Performs Operation Correctly
Makes Correct Decisions
1. Examine the face piece for:
Cracks, tears, holes, or distortion from improper storage.
Inflexibility (stretch and massage to restore flexibility).
Cracked or broken air-purifying element holder(s), badly worn
threads, or missing gasket(s) (if required).
2. Examine the head straps or head
Loss of elasticity and twists.
Broken or malfunctioning buckles and attachments.
3. Remove exhalation valve cover and
examine valve for:
Foreign material, such as detergent, residue, dust particles,
or human hair under the valve seat.
Cracks, tears, or distortion in the valve material.
Improper insertion of the valve body in the facepiece.
Cracks, breaks, or chips in the valve body, particularly in the
Missing or defective valve cover.
Improper installation of the valve in the valve body.
4. Examine air-purifying elements for:
Correct cartridge, canister, or filter.
Correct/incorrect installation, loose connections, missing or
worn gaskets, or cross-threading in holder.
Expired shelf-life date on cartridge or canister.
Cracks or dents in outside case of filter, cartridge, or canister.
Evidence of prior use of sorbent cartridge or canister, indicated
by absence of sealing material, tape, foil, etc., over inlet.
5. Attach neck strap.
6. Place chin in chin cup and pull
crown straps or head harness across head.
7. Adjust straps to correct fit.
8. Perform positive pressure user seal
check by placing palm of hand over exhalation valve cover and exhaling
slightly for a count of 10. Notice any leaks.
9. Perform negative pressure user seal
check by placing palms of hands over filter intakes and inhaling slightly
for count of 10. Notice any leaks.
10. Readjust straps, if necessary.
11. Repeat steps 8 and 9 if readjustment
12. Check for good breathing.
13. Loosen straps from top to bottom.
Be gentle so as not to damage elasticity of straps.
14. Grasp respirator on bottom and
remove upward over top of head.
15. Remove cartridges and dispose of
Adapted from Performance Checklist developed by Gary Gustafson of Laborers-AGC