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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).
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoSport diving air tanks are filled with very dry filtered air. Air is approximately 79% nitrogen and 19.8% oxygen the rest being carbon dioxide and inert gases like argon. Divers who have taken the training can dive with NitrOx fills. NitrOx is a nitrogen/oxygen mix that is some small percentage higher in oxygen concentration than normal air. Divers who dive with closed-circuit recirculators carry straight, compressed oxygen and continuously recirculate the initial nitrogen and scrub out the accumulating carbon dioxide with (usually) sodium hydroxide. Commercial divers use various mixtures, depending on the working depth, of Helium and oxygen so as to avoid long decompression stops since helium does not dissolve as well as nitrogen does into the body tissues.
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∙ 14y agoBecause that is what air is made of and Scuba divers need to breath air. It is however possible to increase the amount of O2 in the gas mixture if you are trained to breath Nitrox as a scuba diver and if you are a technical diver to add other gases such as helium to the mix. Recreational diver however normally breath simply compressed air.
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∙ 13y agoProfessional divers add Helium to the mix. This is called Trimix because it alters the proportions of three gases: oxygen, nitrogen and helium.
Adding Helium reduces the risk of nitrogen narcosis and oxygen toxicity in deep dives.
Another noble gas, argon, is also used in diving but normally only to inflate dry suits.
Wiki User
∙ 13y agoThere can be multiple gases used depending on desired depth and length of dive the common is a tri-mixed gas of Nitrogen, Oxygen, and Helium.
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∙ 10y ago- Helium contribute to a more easy breathing (reduce breathing effort)
- Helium avoid narcosis when only pure oxygen is used
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∙ 11y agoFor purpose of soldering the gas is acetylene.
Wiki User
∙ 11y agoHelium
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Is nitrogen gas poisonous?
Good and Funny question. Nitrogen is all over the world. It occupies large proportion of air we inhale. If it was poisonous, all the livings would be dead! So, its NO ***************2nd Opinion ************* Not always so funny. At normal atmospheric pressure we don't get enough in our blood to affect us, but if we breathe air at high pressures, as scuba divers do, the amount of nitrogen in us goes up. At a depth of 100 ft, it starts to intoxicate the diver, and at 300 ft it can cause a loss of consciousness and even death. That's why divers don't use regular air at extreme depths.
What are four uses for oxygen?
two uses for oxygen can be either the obvious to breath or you can say oxygen can be used to make the plastics,textile,rocket repelant it can also be used for oxygen therapy.
Can compressed nitrogen explode?
Yes, but it is a mechanical explosion and not a chemical one. The pressure of the gas cause the gas to store mechanical energy. And if circumstances permit, like a weakening to failure of a compressed gas cylinder with high pressure nitrogen in it, there will be a mechanical explosion. Such things have been known to occur - with catastrophic results. Nitrogen will not burn in the conventional sense, so it won't explode like, say, hydrogen.
What are tools for an oceanologist?
scuba stuff and camera and brains
How much does pure oxygen cost?
You're swimming in a sea of it right now, breathing and burning as much of it as you want. And wherever you go, except underwater, there's always an endless supply there for your benefit and use, at no cost to you. You'll never pay a penny for oxygen, no matter how much of it you take. If you want it packed in some kind of a container, however, like a hospital bottle or a SCUBA tank, you'll have to pay somebody for that. Not for the oxygen, but just to pack it for you.
Why only oxygen is not used in tanks of scuba divers?
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.
What is the air mixture in scuba?
Same as the air you breath everyday, aprox 21% Oxygen 79% Nitrogen
Why do you need oxygen cylinders when you go scuba diving?
The simple answer is ... you don't. A majority of scuba dives use compressed air in the cylinders. Therefore you don't need "oxygen" cylinders. HOWEVER, if you are a diver that is diving on Nitrox, in which divers change the amount of oxygen vs nitrogen in their air, then your tank needs to be "oxygen clean" because you are putting oxygen in first, then nitrogen.
Give one use of oxygen?
For oxygen masks for firefighters, scuba divers etc
If there is no oxygen on the moon then how does the man in the moon breathe?
By oxygen tanks - similar to SCUBA divers.
Why do scuba divers carry oxygen cylinders?
So that they may breath underwater.
What are the gases that scuba divier breathe?
In recreational diving, most divers use compressed air (as in the normal air we breather at the surface). Some divers are also trained to use special gas mixes called Nitrox which have a higher oxygen content and lower Nitrogen. Professional (or commerical) divers tend to use more advance mixes such as Heliox or Trimix which combine Oxygen, Nitrogen and Helium.
Where can one purchase a scuba regulator online?
Scuba regulators, also called 'diving regulators', are vital for scuba divers to properly obtain oxygen from a tank. Regulators are available for purchase through diving specialty stores such as Prime Scuba, House of Scuba, and Divers Direct.
What is the collective noun of scuba divers?
The collective noun is a bubble of scuba divers.
What is meant by the sick term divers diseases?
Scuba diver's diseases include decompression sickness, pulmonary embolus or emboli, oxygen toxicity, nitrogen narcosis, and other afflictions associated with scuba diving, working under different pressures, at sea, or underwater.
Mixture of gases for scuba diving tanks compared to normal atmospheric air?
Most SCUBA divers dive with compressed air, which is normal atmospheric air compressed into a scuba tank.
How man can survive in water without oxygen?
They can't survive without oxygen but they can survive with an oxygen mask that scuba divers use and with supply of oxygen of course .
