The concept is obviously valid and is being applied in areas like  
airplane fuel tanks.  It's even being advocated for occupied areas but  
that's a problem.   The EPA identifies something like 18% has a  
trigger point (but don't hold me to that value).  The Navy also looked  
at the concept back in the 80's.  It's not that it kills you but there  
is a reduction in cognitive skills.

Roland

On Sep 22, 2009, at 6:24 PM, [email protected] wrote:

> Could you just reduce oxygen to 15% or less by pumping nitrogen in,  
> like
> numerous trade names (ask me for a list if you need privately) for  
> this?
> Would not be affected from pressure or temperature would  not let  
> anything
> light up, and you can still breath in.
>
> Jack C Kilavuz
> Mob: +65 9277 5741

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