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It has to be at least 60 feet, and most instructors want to go deeper than that, say to 100, to be able to have the AOW students experience, in a controlled environment, whether or to what extent they are affected by narcosis.
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NAUI Divemaster, loyal Scubatoys customer
Pinnacle Evo2 drysuit, Zeagle Ranger BC, Atmos Pro reg, VT Pro and Atom 2 computers, Tusa Zoom fins
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