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From: IchthyoSapien <goettg@rp*.ed*>
Date: Fri, 15 Mar 1996 13:46:43 -0500
To: cavers@ge*.co*, ken@co*.ci*.uf*.ed*, techdiver@terra.net
Subject: Re: Oxygen Decompression (cave diving)
Cc: freeattic@co*.ci*.uf*.ed*

i think that for cave divers who decompress in calm water, using pure O2
at the 20 foot stop is not a problem.  in the open ocean, however, with
it's swells, you can be at 20fsw, then at 10fsw, then at 30 fsw within a
few moments.  using pure O2 in this situation can become more hazardous.
using 80/20 gives you 1.6ATA at 33fsw, so although you don't get the most
efficeint offgassing, you cut down on the oxtox risk.  i think is becoming
the standard, and it's getting pushed onto you cavers.  take care
-glenn

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