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To: J
To: Shepherd <jms@fe*.ed*.ac*.uk*>
Subject: Re: Added Info Regarding Ed Suarez
From: Epic Dive Shop <epic@so*.ha*.ed*>
Cc: techdiver@opal.com
Date: Tue, 19 Jul 1994 18:53:17 -1000 (HST)

On Tue, 19 Jul 1994, J Shepherd wrote:

> 	What work exists, if any, on the effects of a sudden switch to
> high ppO2 and ppN2 from a bottom mix; 220 feet = 67m, which is often
> dived on air. Presumably an acute exposure is far more dangerous. Is
> this effect understood at all? 
> 
> 	Jason.

I think we all need much for information to speculate further..

what depth and for how long, what was the bottom mix, temperature,
current, on and on... (just switching to a ppo2 greater than 1.4 after
a deep dive is enough to cause problems tho, and air at 220 is over
1.6)... we stick to our o2 limits *very* strictly due to symptoms on
a number of dive profiles.

aloha,

dennis

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