Ocean Technology Systems Guardian, Owner'S Manual

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15
Next, take a cautious breath to ensure the mask has cleared and to
prevent inspiring any residual water. After the first inhalation, look down
and exhale forcefully to clear any remaining water. Repeat this forceful
exhalation a few more times and you should have a fairly clear mask.
Again, practice this until it is second nature. If you have to bailout while
under actual diving conditions, you will certainly be task-loaded with other
issues. Competence with this technique will help you safely resolve any/
all of these problems.
When you make your surface entry, ensuring the ABV is closed, secure the
mask to your face with one hand as you normally would. Breathe normally
and never hold your breath. Upon descending, equalize as previously
described, early and often, prior to experiencing any pain or significant
pressure. Stop descending if you cannot equalize or are experiencing pain,
descending only if you can properly equalize. Again, breathe normally
(never holding your breath!) and enjoy your dive.
If your mask requires adjustment while diving, snug the straps as required.
Be careful not to overtighten. Upon surfacing, you may open the ABV to
breathe surface air if necessary. The mask will need to be completely out
of the water for the ABV to function. You may need to inflate your BCD
and swim on your back if a surface swim is required. It is recommended
that you remove your mask only after exiting the water, especially if you
question the quality of water you are diving in.
Note: Plan your dive so you are back to the boat or beach while you still
have air in your tank.
To remove the mask (Figure 14), grasp
the regulator/bottom of the mask with both
hands and thumb each of the lower buckle
tabs on the sides. Then, pull the mask out
and up off your head.
Warning Note
If diving in an extreme cold environment,
caution must be used to prevent ice build-
up that could interfere with the function of
the quick-release mechanism. If necessary,
refrain from removing the regulator from
the mask unless the mechanism is dry.
Also, keep the inside of the FFM dry when
possible.
Figure 14: To Remove
Mask, Grasp Bottom and
Thumb Lower Buckle Tabs