Re: Cabin Depressurization

Date:         03 Mar 2000 23:25:46 
From:         shopisle@aol.com (Shopisle)
Organization: AOL http://www.aol.com
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The previous writer was incorrect. 100%
o2 is inadequate above a certain altitude
unless delivered under pressure. I cannot
quote an exact level but its around 25/30
m feet. There is a higher level , I think
around  50m+ where body pressurization
is required to sustain life. Cockpit crew
o2 systems are pressure delivery types
for the reasons stated above. Also note
passenger masks dilute o2 with cabin air.

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