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Eddie,
	Comercial aircraft pressurize the cabins to maintain an ambient pressure 
higher than outside the aircraft. This pressure is equivalent to an altitude of 
no more than 8,000 feet (or 11.91psi). While this poses no problem for people 
saturated with N2 at sea level, divers with higher than sea level N2 loading 
may run the risk of DCI. DAN has done some studies of this and should be about 
ready to publish a paper on it. I've done several unpressurized flights to 
around 15,000' - 18,000' and two hypobaric chamber rides to around 30,000' 
without any problems so I don't think 0' to 8,000' wold be a problem- think of 
it as a drive to the mountians. 
C.

> I am sure most of you out there can point me in a direction on information
> regarding diving and flying. However I am looking for information regarding
> the effects of pressurized airplane cabins and its long term effects on the
> human body, if there is such a thing. I travel frequently and usually by
> air. I have researched the web and not much out there, and have contacted
> airlines and that went nowhere. Maybe somebody knows of a white paper or two
> out there. Thanks?
> 
> Regards,
> 
> ----------------------------------
> Eddie Powell
> Senior Network Security Consultant
> International Network Services
> backgas@ta*.rr*.co*
> 
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Chris Elmore
Network Administrator
University of SC
(803) 777-1534 office
(803) 348-3055 mobile
Chris@sc*.ed*

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