DONNING
16 P/N 595390-01 Rev D 202009
1 Adjust the head straps to the full outward position. See Figure 3-1.
Figure 3-1 Adjusting the head straps to the fill
outward position
2 Hold the facepiece in one hand. Fold the head harness over the lens
(see Figure 3-2), or hold the head harness up and out of the way
with the other hand.
Figure 3-2 Folding the head harness over the lens
3 Place the facepiece centered on the face with the chin properly
positioned in the chin cup. See Figure 3-3.
Figure 3-3 Positioning the chin
4 Using the hand hold at the bottom of the netting, pull the head
harness over the crown of the head and down the back of the head.
Pull forcefully enough that the facepiece moves up to position your
chin snugly within the chin cup and forms a close fit to your face.
See Figure 3-3.
Figure 3-4 Placing the facepiece on the face
5 Verify that no hair or clothing interferes with the face-to-facepiece seal. Verify that the head harness forms a
close fit to your head.
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