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| That
is breathing air with more than the 21% of oxygen that we breath here
at the surface. Normally there are mixtures of 32% or 36% O2 used
for diving. You don't go deeper with it, just safer (Info). |
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| Greater
depths don't let you become a greater or more courageous diver but
with a grown experience you might want to visit a divesite beyond
the 20m or 30m mark and then it is better to know what to do and how
to do it right. |
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