You don't get it George Wentland, 100% O2 means absolutely no nitrogen being absorbed or sustained, pure offgassing only. What better way to minimize DCS. 100% O2 means medical gas on the surface if there is a problem. I have had two minor hits that 100% O2 cleared right up after breathing it pure on the surface for a half hour. 100% O2 means higher PO2 at deco.(That's a good thing for offgassing nitrogen or helium). 80% O2 in my opinion is a marketing scam. Shops can charge you more to blend a mix than to just shoot straight O2 into your bottle. You aren't an ANDI technical diver are you? Later, Greg Kuiper -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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