Posted on 01/15/2014 12:48:02 PM PST by 2ndDivisionVet
This can’t be right...It suffers from two huge problems.
The first is oxygen toxicity...It would be dangerous to use below 10-15 feet in depth.
Secondly, an active diver requires about a quart of oxygen per minute. If seawater has 8ppm oxygen, you’d need to filter 51 gallons of it through the device per minute to supply enough oxygen to sustain him. I have a hard time seeing that device pushing 51 gpm even if it were nuclear powered. :)
Would be a great back-up for cave divers...
Probably not much dissolved oxygen available past a few yards depth..
And it’s my understanding that a human who is below 30ft of water probably needs that oxygen very much.
“It is my understanding that a human does not want to breath O2 below a depth of 30ft. or less.”
Its not that simple. It depends on the pressure and the % of oxygen in the air you are breathing. 100% oxygen is really only used in medical situations at sea level.
At sea level the air we breath is 78% nitrogen, 21% oxygen, and the rest is other stuff. Most people can breath this mixture down to about 150 feet of depth. As you increase depth the gas compresses which in turn increases the % of oxygen you actually receive. At a certain point you encounter oxygen toxicity which can cause vomiting, dizziness, convulsions and unconsciousness. The last usually results in drowning. For technical divers who go 200, 300, and 400 feet down one breath of the wrong air mix will kill them.
This sounds like a great tool but I would have to know more about it before using it. I’d wager there are significant restrictions on where it can be used safely.
Here we go!
Maybe now they can talk electric cars.
I'm relatively new to diving, but I know you don't wear an oxygen mask.
I did 8 dives in the last three weeks and spent very little time "trying to make head and tail" of what the gear was up to. It just doesn't happen. You check your gear on the surface, keep equalizing your ears as you descend and you don't think about it.
The clown who wrote this is just trying too hard.
Its fairly easy to do an emergency ascent with zero air from 40 feet. It can be done from 100 but its not something I’d like to do.
The air in your lungs expands as you rise, giving you more oxygen then you think you have. The big problem is you have to exhale all the way or your lungs will blow out.
Well, in all the westerns I saw as a kid, the bad guys always wore masks that were just their bandanas pulled up over their mouths and noses.
1. I would trust it more if their grammar was better.
2. Yes to allow you to breath underwater, it would need to produce a pressurized oxygen inert gas mixture.
3. I hope it actually works.
Where’s the backup?
In the boat.................
Wasn’t there a 6 million dollar man episode?
Bump
I wonder how much free oxygen is available in a cave.....................
There’s no back up, you just go back up .
Interesting. I want to see this when it makes its way near me.
Looks cool and I wouldn’t mind trying it. Might work great for my drift diving.
Very cool.
Now Kim Jong-un is going to have put up a net fence all around North Korea.
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