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Diving gases which are used (in order of frequency in everyday use):
- Most Scuba dives use conventional air as a gas mixture.
- However, some divers use nitrox, which is oxygen enriched air. The increased oxygen content (well, actually it is the reduced nitrogen content) allows divers to stay underwater for longer without decompression stops.
- Some advanced technical divers who go deeper use a mix of oxygen, nitrogen and helium called trimix. The helium in the mix reduces the effects of nitrogen narcosis, and the oxygen content is usually reduced to lower the risk of oxygen toxicity at great depths.
- If the dive is so deep that nitrogen cannot be present at all, the diver may simply use a helium-oxygen mix, usually called heliox.
- For very-very-very deep diving (usually very deep commercial or military operations), the diver can use a blend of hydrogen, helium and oxygen called hydreliox. The hydrogen is used to reduce the effect of high pressure nervous syndrome (HPNS) caused by breathing helium at great pressures.
- Also extremely rare, and used on occasionally in commercial diving is a mix of neon and oxygen called neox. Neox has the same benefits as heliox, but helium can affect the voice and so if divers need to communicate vocally underwater they may elect to use neox.
- There are two other "varieties" of trimix which have been given their own names over the years. Heliair is used to refer to any mix of helium and ordinary air. It is quicker and cheaper to blend than customised trimix, and so is often called "poor man's trimix". More common in the 70s and 80s, it is rarely used today. Conversely, some divers used trimix with hyperoxic contents (ie. more than 21% oxygen). This can be used in the narrow corridor of water between about 100 and 160 feet to offset nitrogen narcosis and also to marginally reduce decompression limits. Such mixes are referred to either as TriOx or as Helitrox, but are not in common usage.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoThe types of gas that a scuba diver can use are nitrox gas and pressurized, filtered air. These are the gases that they can use. The most frequently used gas for recreational diving is filtered air, but nitrox is used for tech diving, and for deep depth diving.
Wiki User
∙ 14y agoDepending if the person is nitrox certified or not the gas in the tank is compressed air or if nitrox certified the gas will be a mix of nitrogen and oxygen with the mix marked as a percentage of O2.
Wiki User
∙ 12y agothe same thing everyone breaths, oxygen
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Who uses a scuba-suit?
Many people use a SCUBA suit for diving. Sport divers, police divers and some Navy recovery divers.
What do scuba divers use to breathe?
Scuba - self contained underwater breathing apparatus
What kind of camera do scuba divers use?
water proof ones
What do scuba divers use to tell how far down they are?
scuba divers use pressure meter because the deeper down you go the more pressure builds upAdditiona depth gauge or a dive computer
How do you use sonar in a sentence?
Scuba Divers use a Sonar to find treasure or a hidden ship.
Give one use of oxygen?
For oxygen masks for firefighters, scuba divers etc
What is an open circuit scuba dive?
This is a dive using scuba equipment you are used to seeing. It is where you breath from a scuba cylinder and exhale all the gas you breathed as bubbles. Since you are not recycling or rebreathing any of the gas, the circuit is open. Closed circuit or semi-closed circuit is where divers use "rebreathers" and rebreath the majority of their gas. 100% of the gas can never be rebreathed, so a very small amount is exhaled as bubbles.
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.
How do scuba divers use density?
Divers use substances with high density (ie. lead) to help them sink, and substances with low density (ie. air) to help them float. That way they control their bouyancy.
Why is Jacques remembered?
He was he inventor of the SCUBA (Self-Contained Underwater Breathing Apparatus) equipment divers use to explore under the sea.
Why don't sky divers look for the loch ness monsters?
Sky divers use parachutes to jump from planes. SCUBA divers have difficulty searching Loch Ness because there are many inlets and lagoons, and many have so much sediment that the water is very cloudy.
How do scuba divers breathe underwater?
They don't breathe normally on their own.They have to use pressure regulators to breathe naturally, overcoming the extreme pressure deep underwater.A snorkel and oxygen tank help the divers breathe when they are underwater.
