Figure 1-3. Putting on the mask.
Grasp the cheek straps with both hands and adjust them with moderate
(10) Clear your mask.
(a) Cover the outlet valve with the heel of one hand and cover the
voicemitter with the other hand. You can do this with your hands over the hood (hood
between the hands and mask as shown in figure 1-3C) or under the hood.
(b) Apply pressure with both hands to seal the outlet valve and