T's called a loop flush my friend and it's also a nifty way of validating your cells to DIL PPO2.Sounds like a long winded way to recommend air breaks to me. I do not see why they would be difficult in practice on a CCR.
Who carries air on a rebreather?Sounds like a long winded way to recommend air breaks to me. I do not see why they would be difficult in practice on a CCR.
Air breaks don't have to be done on "air", just low o2 contentWho carries air on a rebreather?
I'm pessimistic about air breaks. Without a proper theory as to how they work or a statistical double blind test I'm unconvinced. It's another 'Nitrox makes me less tired' story.
they use air breaks cos of the very high levels of ppo2 on some of the treatments.Air breaks don't have to be done on "air", just low o2 contentPHP:
You should talk to the very nice people that man the chambers around the country. They seem to think Air Breaks are an important part of the recompression therapy they carry out on us divers
Is the "nitrox makes me less tied" comment because it contains more o2 or less nitrogen
Re the article in question, for me it doesn't say anything new, and presumes to explain away reasons for fatalities, without actual evidence
I thought they used air breaks when you started to twitch because managing a convulsion slowed the treatment down.they use air breaks cos of the very high levels of ppo2 on some of the treatments.
During my treatment air breaks were a matter of course. If I remember right then the initial soak is 45min on 2.8bar PO2 with 15min off and then cycled throughout the rest of the treatment. As someone else says, any contraindications to O2 and it's a delay in the treatment, they don't want you hitting the twitchy stage. I would also imagine it isn't particularly easy to manage a convulsing patient in a confined tin can with lots of trailing leads and hoses and crap for the tender on his own.I thought they used air breaks when you started to twitch because managing a convulsion slowed the treatment down.
Remember we are talking chamber levels of say 2.4bar ppO2 - compare like with like.
The USN's rebreathers were set up to run a constant 0.8-0.9 throughout the dive, they've been like that for 30-odd years.If you subscribe to this type of marginally thought out "twaddle" (good choice of words Nigel) then why not say, don't dive above 0.7 set point, even less chance of an O2 hit