Thread: max PPO2
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Old 3rd January 2007, 01:47   #1 (permalink)
pimderhoodes
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max PPO2

Reading the stories about ppo2 from Joe,

In water-pure 02 deco at 40 FSW was observed by me personally for literally *thousands* of hours., right out of the US Navy dive manual and using the tables custom produced for us by Dr. Bill Hamilton..... and we never saw an 02 tox symptom ever. We did *much* longer 40 foot chamber decompressions (hours) after the in-water portion of the deco was done and never saw an issue there either. Every 6 months each diver did a 60 FSW for 30 minute chamber run on pure 02 for the "02 tolerance test" and in literally hundreds of chamber runs we *never* had a hit. Don't take me wrong: 02 tox *is* an issue, just that it's a "fuzzy" limit and not a "hard" one. Go see how the SEALs use LAR-V's for emergency combat escape dives to 75 feet plus (diving in an emergency to below hand-grenade sinking depth) and then talk to me.


makes me ask the question to all of you, how much PPO2 do you use during the dive ?
Are you putting it to the max of 2.0 ? or just doing deco at 2.0.
Or are we all doing the "normal" 1.5 / 1.6

thanks pim

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