Re: Smoke/Fire escape hoods

From:         Paul Memrick <70232.3071@CompuServe.COM>
Organization: via CompuServe Information Service
Date:         31 Aug 94 02:17:23 
References:   1
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I have played around with the PBE's the airlines use and they do 
not use a filter.  They have a solid state 02 canister that lasts 
about 15 minutes.  Once it's activated, it releases 02 
continuously until depleted.  Pretty neat device, but I don't 
know what the commercially available ones are like.

Cheers,
Paul

-- 
Paul Memrick