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Date: Mon, 4 Sep 1995 07:50:32 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
To: "A.Appleyard" <A.APPLEYARD@fs*.mt*.um*.ac*.uk*>
Cc: techdiver@terra.net
Subject: Re: cost of rebreather diving


>   (1) What would be the cost per hour diving with an old-style oxygen
> rebreather getting oxygen and sodalime from ordinary industrial sources?

My body metabolizes about 1.5-2 cubic feet (sorry about not using metric)
of O2 per hour with moderate workload.  Your milage may vary (do you folks
say "kilometerage" in Europe?).  The cost of Oxygen on a rebreather
depends on 1) the price of O2 in your area, 2) how much your body burns
under given conditions, 3) how much O2 you lose from mask clearings other
leakage, and sawtooth profiles, as you call them. 

Cost per hour of CO@ absorbant depends on a lot of factors, but anywhere 
in the range of about US$1.50 to US$5 per hour.

Aloha,
Rich

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