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yes, it is.
No it is not,. They use a membrane system to produce and mix the air before that they used to partial fill and and roll the tanks on the floor to get them to blend.
Some advanced divers dive using gas mixtures including Helium.
Same as the air you breath everyday, aprox 21% Oxygen 79% Nitrogen
helium
I would think so, because there are two of them mixed together. Air in a scuba tank or anywhere else should be heterogeneous. A scuba tank filled with either oxygen or nitrogen would be homogeneous.
yes, it is.
No it is not,. They use a membrane system to produce and mix the air before that they used to partial fill and and roll the tanks on the floor to get them to blend.
Most scuba tanks are filled with simple purified air. However, some are filled with oxygen enriched air called 'nitrox' or (less commonly) a blend of helium, oxygen and nitrogen called 'trimix' or (even less commonly) helitrox or heliox.
No.
Most very deep dives are done in trimix, which is a mix of oxygen (actually very little of that), helium and nitrogen.For really deep dives, divers use heliox, which is a mix of pure helium and oxygen.And for really stupidly deep dives, divers use hyrdeliox(hydrogen, helium and oxygen).
Naturally the air we breath has 70% of nitrogen and only 21% of oxygen, this is done is scuba diving as well. Just oxygen is not enough for living, while oxygen is essential one.
For oxygen masks for firefighters, scuba divers etc
By oxygen tanks - similar to SCUBA divers.
Different scuba gear types weigh different amounts. The oxygen tank is the heavy part of the scuba diving gear.
In order to begin scuba lessons, you will require an oxygen tank, a wetsuit, a mouthpiece, as well as flippers. Your scuba classes most likely offer these equipment.
no