Air does not really work or give any leverage. Just imagine the offgassing
curve with like gases on both sides. It is bad enough with unlikes. You want
to get all the gas out that you can in the early part of each step by virtue
of the reduced gradient, the bulk of which will be over fast, and then the
rest of the advantage at that point is due to the oxygen window. Oxygen (
partial pressure of oxygen) also more rapidly dissipates whatever bubbles
are present, and of course is transported with or without the bonds at high
ppo2s.

Proper uses of the gases is what allows us to benefit from them inwater.


-----Original Message-----
From: Dean Laffan [mailto:email@re*.co*.au*]
Sent: Friday, September 06, 2002 1:40 AM
To: techdiver
Subject: Re: O2 exposure


on 6/9/02 10:27 AM, George Irvine at trey@my*.ne* wrote:

>  We are also getting a huge advantage being in air for that part of
> the deco, rather than in water.

George I have often heard that it is safer to deco in air and that is less
risk of toxing while not immersed. Is there much to say about the reasons
why it is such a huge advantage ?


Regards


dean  laffan

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