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Nitrox!

Discussion in 'Advanced Scuba Discussions' started by buhavis, Mar 17, 2009.

  1. masterof0

    masterof0 Solo Diver

    # of Dives: 50 - 99
    Location: Work in NorCal, Live in Midwest
    547
    1
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    I would like to see that study. I think the key is to evaluate how it is/was being used. If was being used to extend bottom time, then that is perfectly understandable (extended bottom time = additional nitrogen loading = comparable risk). If it was being used with bottom times based around air, then I have a hard time believing it because of the reduced nitrogen loading.

    If what you say is true, and DCS is just as prominent with EANx while using the air bottom times then there is no inherent value with EANx and a lot of people are wasting their money on both certs and nitrox fills.
     
  2. ScubaSteve

    ScubaSteve Wow.....what a DB

    # of Dives: 200 - 499
    Location: Acton, Ontario
    23,370
    4,412
    113
    Rather than getting into this debate, let me sum up the answer to your question

    NITROX = GOOD

    Take the course. You will not regret it in the end.
     
  3. UCFKnightDiver

    UCFKnightDiver Divemaster Candidate

    # of Dives: 200 - 499
    Location: Akron, Ohio
    866
    21
    18
    lol what masterof0 said I dont feel like typing out the same exact answer that he gave.
     
  4. cooperscuba

    cooperscuba Solo Diver

    # of Dives: 2,500 - 4,999
    Location: Egypt
    244
    61
    28
    Believe I mentioned that. The benefit of EAN is to extend RDP bottom times. The safer tagline is used by some instructors to sell courses and by ill-advised divers. Only one case I know of that was a good reason for using EAN other than extended bottom times. I had a student who had an illness that caused a disproportional drop in his oxygen levels with exercise (can`t remember the name of the illness) and managed average dive times when he swapped to EAN. If you`re using EAN as "it`s safer" you are indeed wasting money on fills. Personally no EAN student of mine (except the aforementioned guest) has ever been sold an EAN course with me because "it`s safer".
     
  5. CwbyDiver

    CwbyDiver Instructor, Scuba

    # of Dives: 500 - 999
    Location: Fremont, California
    20
    0
    0
    ok, first off....EVERY dive is a decompression dive even in recreational limits.....think about it. If you didnt need to deco aka OFF GAS there would be no limits to your accent rate period. But funny how we all use the standard accent of slower than 60 fpm. EANx just means you'll have less to of gas on your accent. plain and simple for recreational limits............
     
  6. UCFKnightDiver

    UCFKnightDiver Divemaster Candidate

    # of Dives: 200 - 499
    Location: Akron, Ohio
    866
    21
    18
    the "is nitrox safer" issue aside, nitrox is just better, than air for recreational limits.
     
  7. Joe21

    Joe21 Solo Diver

    98
    0
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    I think as long as you plan your dive correctly nitrox is definately safer than air. Nitrox allows you to reduce your nitrogen intake, and it signifficantly extends your bottom time which is especially important for spearfishing, plus you dont feel tired after the diving.
     
  8. Reg Braithwaite

    Reg Braithwaite Solo Diver

    # of Dives: 50 - 99
    Location: Toronto, ON
    976
    15
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    Is it possible that while incidences of Type I though IV DCS are equally unlikely with and without Nitrox on "recreational" dives, incidences of sub-clinical DCS are reduced through the use of Nitrox? This could explain why divers report feeling "less tired" after diving Nitrox. Of course, the Placebo Effect can explain the same thing :)

    Conversely, there are objective risks associated with Oxygen Toxicity and additional procedures to follow that could lead to operator error (subjective risks). Is the reward real? And if so is it worth the risk?
     
  9. Sampa

    Sampa Angel Fish

    # of Dives: 0 - 24
    Location: Finland
    5
    0
    0
    Have there been actual double-blind studies about this? They would be interesting to see.
     
  10. ScubaSteve

    ScubaSteve Wow.....what a DB

    # of Dives: 200 - 499
    Location: Acton, Ontario
    23,370
    4,412
    113
    I feel just as exhilirated after a dive with air as I do after a dive on nitrox so I have always wrote that off as placebo effect.



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