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I think I might write this in big, bold, fluorescent letters somewhere. Perhaps on my wing.my ass, my conservatism
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I think I might write this in big, bold, fluorescent letters somewhere. Perhaps on my wing.my ass, my conservatism
Manatee Diver, Just to be clear, the time limits you are quoting are for pulmonary oxygen toxicity, which causes lung issues, where we have somewhat understood factors of partial pressure and time.
The issue generally of concern as you approach 1.4/1.6 is central nervous system toxicity, which causes convulsions, where all the factors are less understood, so people draw a line at partial pressure. But as most lines, it is fussy and time and others seem factors, but no precise numbers are know. But the 45 minutes at 1.6 is about pulmonary toxicity, CNS toxicity may cause convulsions way before that depending on you, what you're doing, how well your day is going, ...
Edit: Low N2 makes a wider NDL buffer more convenient. Convulsions are really bad. I work at low N2 while staying a decent margin from convulsions.
I do find the PADI EAD manual to be somewhat sparse as in "this is what you need to know to pass our exam and not much more."
That said, my ass, my conservatism.
I can't believe this is even a question....
OF COURSE WE DO! Dumbing down mixes with air has never been an issue, nor would it be. Not once did we say we didn't, and there is not a soul here who would even think of saying something like that. I'm sorry, but this comes from confusion from the OP on what is going on and not fully understanding blending.
But I do believe that excessive O2 is bad for you because, unlike N2, oxygen is not chemically inert and it damages DNA and other vital molecules in our cells.
Sure. I am a big fan of Clint's movies too. Is there anything else you might contribute to the dialogue?You know what they say about opinions? They're like arseholes: everyone has one.
Sure. It's even on topic.Is there anything else you might contribute to the dialogue?
That's your choice. I happen to disagree.As long as I do not get DCS, I do not care about N2 loading.
No conspiracy. There is just not enough data for any deciesive statements coming from CDC, FDA or scuba agencies. But there are valid reasons to suspect that indeed, breathing Nitrox should increase mutation rate and/or kill cells. So we are in the grey zone here, just like with taking antioxidant supplements.Oh goodness... apparently nitrox increases the risk of DNA-altering mutations.
I smell a conspiracy... cert agencies, naturally, are trying to suppress this vital information by excluding it from their nitrox course materials. The truth, no doubt, is on YouTube.
I do find the PADI EAD manual to be somewhat sparse as in "this is what you need to know to pass our exam and not much more."
That said, my ass, my conservatism.
There is just not enough data for any deciesive statements coming from CDC, FDA or scuba agencies. But there are valid reasons to suspect that indeed, breathing Nitrox should increase mutation rate and/or kill cells.
The really scary part here is not concern about Nitrox altering one's DNA, but rather that you might actually be serious.No conspiracy. There is just not enough data for any deciesive statements coming from CDC, FDA or scuba agencies. But there are valid reasons to suspect that indeed, breathing Nitrox should increase mutation rate and/or kill cells. So we are in the grey zone here, just like with taking antioxidant supplements.