On Fri, 21 Apr 1995 Cvdvr@ao*.co* wrote: > Seems the major consideration while on air is either the deco > requirements or the narcosis factor, but not the PO2. I beg to differ. Although I am plenty narced at 290 on air, were it not for the ppO2 I'd do 290 on air instead of mix. I personally will scooter at 250 on air IF the cave is big enough that I could come up a little and swim out. If I have to work at 250 I won't do the dive on air. Quite a few of the poeple I dive with seem to feel the same way. Safe Diving r.b.
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