MSA G1 Operating Manual page 22

7 Donning
NOTE: The 4-point head harness does not have an adjustable top strap.
11. For donning in cold weather, release your breath.
12. If necessary, tighten all straps a second time to make sure that the facepiece is tight.
13. Make sure that you can feel firm, even pressure from the nosecup to all points of contact with your face.
7. Make sure that the head harness straps are not twisted.
8. Hold the respirator while you put the top of the nosecup in position on the
bridge of your nose. Make sure that the nosecup is centered on your face.
Make sure that the nosecup does not prevent you from seeing clearly.
9. Make sure that your chin is fully engaged in the chin cup.
10. While you hold the respirator in position over your face, tighten the head
harness straps one at a time in the following order. Tighten the straps by
pulling straight back, not out away from the head.
a. Both lower harness straps (neck)
b. Both upper harness straps (temple)
c. Top strap
G1 APR Facepiece
US
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