7
d. To insert valve into mask, gently squeeze the valve aperture of the mask (
Fig. 2a
) and
position part of it to sit within the groove on the valve (
Fig. 2b
).
Fig. 2a:
Gently squeeze mask
Fig. 2b:
Position mask within valve groove
e. While holding the valve in place, move clockwise or counterclockwise around the entire
circumference, stretching the mask over the valve until it seats in the valve groove (
Fig. 3a
).
Continue until the mask is fully seated within the valve groove (
Fig. 3b
).
Fig. 3a:
Stretch mask to seat in groove
Fig. 3b:
Assembled Mask & Valve
