You get lower PPN2 in all parts of the dive. Consequently you surface with lower tissue loading and can in fact take a shorter SI -- or a longer NDL on the next dive. I'm not sure why OP was screamed at for "shorter SI" phrase: it is how the model works. It's only a question of which parameter you're aiming at for your next dive.
Nitrox Certification
- Thread starter mattspiral8
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You get lower PPN2 in all parts of the dive. Consequently you surface with lower tissue loading and can in fact take a shorter SI -- or a longer NDL on the next dive. I'm not sure why OP was screamed at for "shorter SI" phrase: it is how the model works. It's only a question of which parameter you're aiming at for your next dive.
One thing to consider, as the hands on portion doesn't take that long. Contact whomever you will get fills. Say you'd like to take a nitrox course, do the homework online, and then finish up at the shop. It will take just a little bit of time.
But definitely get the certification and ensure you know how to calculate MOD and program your dive computer, understand how NDL gets affected using tables, how to label cylinders, how to calibrate an O2 sensor, and measure the O2. Remember, you must ALWAYS confirm the O2 percentage of the cylinders you use.
But definitely get the certification and ensure you know how to calculate MOD and program your dive computer, understand how NDL gets affected using tables, how to label cylinders, how to calibrate an O2 sensor, and measure the O2. Remember, you must ALWAYS confirm the O2 percentage of the cylinders you use.
Wow. Good for your ex.
As for Mrs. @jvogt, it sounds like her husband has her back on the Nitrox issue, given the rest of his post that you snipped out, so I'm not sure why you felt you needed to take this opportunity to slam both women. I personally feel like Nitrox isn't worth the extra cost to me on most dives, but considering what I've spent on equipment and training, and what I continue to spend on trips, day boats, and even gas and parking for local shore dives, I'm not gonna go around criticizing anyone who feels safer spending a couple extra bucks per fill for a marginal reduction of an already small but real risk (ever heard of an undeserved hit?) Statistically speaking, I'm betting the total amount of money spent by husbands of non-divers on just the latest non-essential gadgets--fancy Shearwater computers, cameras/housings/lights, customized wing and drysuit colors--dwarfs the extra cost of Nitrox used by all divers of all gender identities on dives that are within the NDLs for air anyway. I believe one man on this very board even once described "messing around with different gear configurations and taking videos" as something that added to his enjoyment of diving. So perhaps we could tone down the misogyny just a notch or two.
Richer nitrox mixes will decrease ongassing of nitrogen at all depths vs air. At these depths, I can see only upsides to this. If the only downside is cost, well, different places charge different rates. One of my local shops charges $5 more for a fill of 32% than air, another charges about $15 more, and in Bonaire the 32% fills were on the house. Different people will have different cost-benefit analyses, but claiming that it's always a waste is just not correct.
I rarely dive air, even to shallow depths. Mainly this is a matter of convenience -- I fill my tanks days or weeks prior to planning my dives -- but the difference in cost is small, and it increases safety under all of condition I dive.
Let’s not forget that there are DCS risk factors beyond depth and time, including but not limited to: age, fitness, hydration level and more.
I'm not debating that there are advantages to using Nitrox even at depths shallower than 50' and deeper than 100' (which is the most common range often quoted when extoling the virtues of Nitrox).
But there comes a point where there is no statistical advantage to diving Nitrox, such as a dive to 30' where the NDL limits are forever, for all practical purposes.
So for a diver to say "well I have considered the advantages and have decided to use Nitrox on particular dives even though there might not be much of an additional safety factor" is one thing, as compared to the poster's wife arbitrarily proclaiming "I'll never dive on air again even though all my dives are to a maximum depth of 60 feet". That's no different than "I wore this $200 dress once, I'll never wear it again, I'm off to the goodwill box to drop it off".
Not wrapping my head around your point. I just lost over $500k in the stock market due to Covid-19, should I now say "I might as well burn the rest of it?"
But there comes a point where there is no statistical advantage to diving Nitrox, such as a dive to 30' where the NDL limits are forever, for all practical purposes.
So for a diver to say "well I have considered the advantages and have decided to use Nitrox on particular dives even though there might not be much of an additional safety factor" is one thing, as compared to the poster's wife arbitrarily proclaiming "I'll never dive on air again even though all my dives are to a maximum depth of 60 feet". That's no different than "I wore this $200 dress once, I'll never wear it again, I'm off to the goodwill box to drop it off".
Not wrapping my head around your point. I just lost over $500k in the stock market due to Covid-19, should I now say "I might as well burn the rest of it?"
AdivingBel
Diver
I don't see anything weird about OW with a nitrox cert especially in Bonaire. All these depth limits spouted for PADI are training standards not diving "rules/laws." They do have depth recommendations for new divers until they gain a bit of experience, but OWs are free to progress at their own pace to recreational depths. Some dive ops may choose to apply depth limits and that's fine (their boat, their rules) as long as they make them clear before you pay money and step on their boat, but that's nothing to do with PADI (even if they say it is 
). Some dive/medical insurance may have some specific depth limitations as well as some local governmental entities (Bonaire isn't one of them as far as I know); again know the actual laws where you dive and follow them. Nothing against additional training. I enjoyed my AOW, but I do get tired of bad info being circulated. I thought MM's humor made the point, but the same bad info persisted. Good luck and have fun. Enjoy Bonaire with your OW and freshly minted nitrox cert (if that's how you choose to go).
). Some dive/medical insurance may have some specific depth limitations as well as some local governmental entities (Bonaire isn't one of them as far as I know); again know the actual laws where you dive and follow them. Nothing against additional training. I enjoyed my AOW, but I do get tired of bad info being circulated. I thought MM's humor made the point, but the same bad info persisted. Good luck and have fun. Enjoy Bonaire with your OW and freshly minted nitrox cert (if that's how you choose to go).
Well, let's not forget oxidative theory of aging, eliminating all free radicals, and them pesky ROSes either, while we're at it. IME there's always a flip side.
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