O2 Toxicity Level is not a Set Rule for a PPO

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Posted by Walt on December 24, 2007 at 10:43:15:

In Reply to: Oxygen toxicity nearly kills mixed gas diver posted by Hilary on December 24, 2007 at 02:17:15:

PPO of 1.4 is a limit of some agencies; it should not be construed as "safe" because a lot depends on the dive environment (temp, effort, etc.) and the diver's physiology and susceptibility. Anytime you scuba, you undertake some risk; the level of risk is increased with depth, gas mix, environment, etc.

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