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I just read the thread on O2 narcosis in the archives. This was never mentioned in my nitrox course. The course stressed that a major benefit of nitrox was a reduced level of narcosis. In fact the equivalent air depth , based on N2 content alone, was the "only" consideration for predicting narcosis of a nitrox breathing mixture at a given depth. This was an "ANDI Complete SafeAir user" course, advertised to give you everthing you need to know to use nitrox mixtures up to 50%. I took the course a little over 4 years ago. Now granted, this was just a nitrox course, nothing fancy. But I feel like maybe I was short-changed. I figure one of two things occured: 1) they didn't know, or 2) they didn't bother to tell me in the interests of promoting nitrox and selling me more gas. I'm beginnig to understand the frustrations some seem to have with the tech agency infrastructure. This wasn't really a tech course. But what if I do take a tech/mix course. What interesting bit of info would get lost during the hard sell. Thanks -tom Kevin Connell wrote: > > It is thought that PP02's in the 1.4 range have the same or greater > narcotic potential than PPN2 of 4.0, so adding oxygen may not reduce, and > may actually increase narcosis. > > I learned this in a PADI Nitrox Diver course. > > At 02:35 PM 7/20/98 -0400, you wrote: > >Mike Zimmerman wrote: > > > >> We've had the discussions > >> before about nitrox not being less narcotic than air. This > >> looks like "deep air". > >> > > > >Huh? > >Could someone please explain this? This is the second time I've heard > >reference to air being less narcotic than nitrox. (George Irvine made > >mention of it saying that air was less narcotic than 30% at 130') This > >goes against everything I learned and goes against what seems to me to > >be intutitivly obvious; ie: less PP N2 = less narcotic effect. I must > >have missed the thread discussing this, or maybe I'm missing something > >real basic. Anyway, being an average NE wreck diver (70 - 130 FSW) and > >generally breathing Nitrox on these dives, I'm curious as to what the > >thinking is here. Just trying to learn. > > > > -tom > >-- > >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > > > > > -------------------------------------------------- > Kevin Connell <kevin@nw*.co*> > > Northwest Labor Systems > http://www.nwls.com > Lake Stevens, WA > > -------------------------------------------------- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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