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On Sun, 28 Aug 1994, Jason Rogers wrote: > Hi guys, > > Richard Pyle writes that he uses industrial grade oxygen. > > I've always used medical grade [B.P. - US equivalent is U.S.P grade I think] > > It all comes out of the same source at the factory, but they take more care > to ensure that no contaminents reach the gas, and it isn't much more > expensive, so why not use it. I'm sure that if your gas supplier found out > you were inhaling industrial grade they would freak out. > I'm not criticising, it just seems odd. That's why I don't tell the gas supplier what I'm using it for.... Besides the fact that Medical grade is MUCH more expensive here, at present I need a perscription to obtain it. In discussing this issue with many other tech divers around the world, I find that I am certainly not alone in opting for Industrial grade. Aloha, Rich deepreef@bi*.bi*.ha*.or*
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