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That depends on what you've decided is your max ppO2, for diving this is usually given as 1.4 with 1.6 being your margin of error. Navy divers are (apparently) expected to deal with a max ppO2 of 2.0 bar.

An O2 toxicity incident isn't an absolute certainty at a particular ppO2, it depends on the individual and the diving circumstances. At least that is my understanding but I'm sure there are others here who have more info to hand on this than myself.


PS Historically, TV producers aren't that particular about getting their facts right on programs like this, usually they describe us as diving with oxygen tanks on our backs, sigh... Like Marvin Gaye sang "believe half of what you see, and none of what you hear"

(Edited by Steve W at 10:59 am on Feb. 12, 2003)
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