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Date: Wed, 20 Dec 95 12:25:28 -0500
From: Carl Heinzl <cgh@ma*.ai*.mi*.ed*>
To: bmk@ds*.bc*.ca*
Cc: techdiver@terra.net
Subject: Re[2]: Rebreather from stab jacket (was


>You have a point about being "fully closed" however I believe that some 
>pure O2 rebreathers do use a constant mass flow valve or something similar
>to add pure O2 to the breathing loop.  

I do not profess to having a great deal of knowledge about pure O2
rebreathers, but, this would still not be a "fully closed" circuit
unit.  Why would anyone do this with a pure O2 rebreather is beyond me
- all the disadvanteages and limitations of pure O2 and semi-closed
operation and none of the advantages of either fully closed or
none-pure O2...

-Carl-

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