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Scott =A0 While I agree that 100% O2 is the optimal gas for decompression I might = just suggest that another reason that 80% is used is related to the pressure = at which O2 is available not just an inability to remain at 20 fsw / 6 = msw. I don't know the position in the USA but as I understand the position = here in Australia commercial O2 comes at about a maximum of 180 bar. While some people in Sydney may have Haskels they are not readily available. If = some one knows where one can readily get one's O2 at 200 bar or that I have = got it totaly wrong I'm sure that they will let me know. What's more I will = be glad to be corrected. =A0 Regards Steve Bliim -----Original Message----- From: Scott Hunsucker [mailto:swhac@pc*.gu*.ne*] Sent: Friday, 18 February 2000 0:50 To: Mike Wallace; techdiver@aquanaut.com Subject: Re: Pulmonary swelling Mike, =A0=A0 This is one of the upcoming discussions planned with the oxygen = series of posts.=A0 I plan on putting out CNS tonight, then pulmonary, then = negative affects of O2, then how we handle the risk, and finally things that we = have learned to make usage safer.=A0 If you can wait a=A0 couple of days I = will get to your question. =A0=A0 I will say in brief that most people using 80% do so because = they have done it for a while, or those that trained them did it that way.=A0 As = I will hopefully point out, 100% is the optimum gas for decompression.=A0 Then = again many people advocate the use of 80% because they can't stay at 20 FSW = so what does that tell you? Scott Hunsucker At 09:18 PM 02/16/2000 -0600, Mike Wallace wrote: Anyone have any information or knowledge of studies of pulmonary = swelling as a result of 100% O2 for deco purposes? It's my understanding that this = is one reason that is given for using 80% rather than 100% for deco. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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