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From: Rodney Nairne <troppo@br*.DI*.oz*.au*>
Subject: Re: Hypercapnia
To: bill_m@wi*.co* (Bill Merrill)
Date: Mon, 18 Mar 1996 07:51:55 +1000 (EST)
Cc: techdiver@terra.net

> 
> Question for the group:  Does anyone know if carbon dioxide buildup is more
> common on air than on trimix?  Why or why not?  There's nothing in the
> techdiver archive on keywords 'hypercapnia' or 'carbon dioxide'
> 
 
Yes, CO2 buildup is more common on air, as the gas is denser,
so has higher work of breathing.

The gas density of trimix is aprox. equal to the narconis depth,
as the helium is so light it can almost be ignored up to 150mtrs.

Rod Nairne.

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