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At 10:29 AM 10/3/97 -0400, you wrote: > The fact is that at WKPP we long ago discovered the inefficiency and >danger of deep air, high ppo2's, and the combination ( deep nitrox) as >we came off of mix onto deco gases or as we tried to conduct >sophisticated dive objectives . We no longer use high PPN2's. We also >discovered that the decompression off of high PPN2's was all but >impossible without symptoms, and we attribute this to damage caused by >them. We use helium-based mixes now instead. G - I know your deco is proprietary, but are you saying that the damage PPN2's cause (rigid cell damage) contribute to DCS and therefore diving a He mix allows a similar profile (more intermediate/deep stops maybe?) without the damage of the high PPN2's and dcs - I've also heard you scorn "helium padding" etc And on this subject - I'm no deco PhD, but if helium absorbs faster into the tissues, doesn't it diffuse faster too? -------------------------------------------------------------------------- Kevin Connell <kevin@nw*.co*> Northwest Labor Systems http://www.nwls.com Bellingham, 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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