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At 3:42 PM 6/7/95, JOHNCREA@de*.co* wrote:
>Scott,
>
>I really do not see ANY narcosis advantage to using Ntx27 at 160ft
>versus air at the same depth.  Narcosis should be essentially the same,
>the PO2 is higher (so there is a decompression advantage, but also an
>increased O2 tox. risk if the exposure is other than short).

Well, this is a refreshing perspective that sheds some light on why
IANTD prefers to teach deep air instead of deep nitrox.  I find this
reasoning much more compelling than the the 'you might not be able to
find a nitrox fill' argument.  As you note, the tradeoff is then
only between the increased O2 risk and the decreased deco.

Once again, techdiver proves it's worth :).

Thanks,
Scott.

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