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Could you please say that again in flat English? I don't know how would someone dive if s/he isn't holding breath! free diving speaking.
holding your breath in SCUBA diving is bad because if you breath in under water the air is under pressure so if you go up the pressure lessens and the air expands making you lungs burst. Usually with free diving if you breath above water, dive down and come back up while still holding your breath there is no pressure change so your lungs don't burst.
But of course talk to an expert before attempting free diving
I think they mean on the way back up, after your dive, you should blow out gently as you head towards the surface.
That way, the gases expanding in your lungs can escape easily instead of doing damage by going the wrong way.
The suggestion of connecting an air compressor to the bucket will likely KILL the user. Most air compressors are oil lubricated. That will put oil in the lungs of the driver, which prevents oxygen getting to the blood. By the time the problem is figured out it may be to late, the oil stays in lungs. That is why ALL air compressors for diving are "OIL LESS" either diaphragm or ring less (Gast).
So it is real easy to die using a standard air compressor, and many have died from it.
Does a foot floor pump have oil or cause any healft risks?
Usually, yes, they are lubricated, the same goes for fridge compressors and the output of such pumps is very low.
Like AmericanMediaRev said, oil less copressors are nice and not that expensive.
I don't know if this DIY video would help you or kill you. I'll leave it up for the experts to comment about it.
why does a rocket headed to otter space weigh more than my iron lung
Posted:Apr 7, 2008
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