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My shallow dives are usually 30' or less, no I see no need for nitrox. On the few times I've used it over the years I noticed no "better" feeling afterwords. It doesn't seem there is any scientific data to prove otherwise, but I don't know that-- there may be.
It's been often discussed. I figure the body only metabolizes the amount of 02 it needs so extra probably doesn't affect you unless too much extra and toxicity.
It's been often discussed. I figure the body only metabolizes the amount of 02 it needs so extra probably doesn't affect you unless too much extra and toxicity.