Koh Tao and Asia Dive Resort 3
January 7th 2010 8:30 start with theory again at Asia Dive and we learnt about decompression sickness and the effects of oxygen and nitrogen at pressure under water. Basically we breathe 21% Oxygen or O2 and 78% Nitrogen or N and 1% other gasses. If you go down 10m deep you double the pressure you will breathe so it adds to 42% O2 and 156% N and if you dive to 30m you take in 63% O2 and 234% N. There is more to it
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