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The pressure on a diver's body increases quickly with depth. At the surface we're all breathing air at 14.7 PSIg, or 1 "Atmosphere" (atm). Each 33 feet of sea water results in another 1 atm of pressure. This means, for example, that a diver's body is under a total pressure of 3 atmospheres at 66 feet of sea water (one of air, two of water).
The human respiratory system is designed to operate at normal atmospheric pressure of 14.7 pounds per square inch. If we descend to 33 feet, the water pressure exerts a force of nearly 30 pounds per square inch on our bodies. Our bodies are incapable of breathing against that much pressure. A Scuba pressure regulator is designed to deliver air at the same pressure as the surrounding water, allowing us to breathe.
A person can only breath air that has the same pressure has his or her surroundings. Under water, the pressure will go up fairly quickly (every 10 meter / 33 feet of water exert the same pressure as that on the surface) and the scuba gear will make sure the diver gets air with the same pressure as that of the surroundings.
A scuba diver needs pressure in an air tank because water pressure increases and pushes down on their lungs as they go down. The air in your lungs is more compressed and more is needed to fill them completely.
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Why are diapers recommended in scuba diving?
They have their place if you are diving in a dry suit for an extended time. If you are diving in a wet suit they would not be needed for obvious reasons. Scuba diving can dehydrate you from breathing the dry air in the scuba cylinders, so hydration is a must.
Is scuba diving in mid air possible?
seriously? it is not diving and you don't scuba to breath in air.
What can a scuba diver purchase from the Air Hog online shop?
A scuba diver can purchase many things for scuba diving at the Air Hog online shop. They can purchase dive knives, dive lights, dive computers, and dive bags which will help them in scuba diving.
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.
What type of pressure is to do with diving?
recreational diving is usually done with 3000 psi of air in a certified SCUBA tank
Why does a scuba diver need increased gas in the air tank?
Scuba divers require increased air pressures in their air tanks while diving because the pressure on their bodies increases.
Is scuba diving when the tanks are floating on top of the water if not what type of diving is it when the tanks float on top?
Its not really scuba diving but its considered scuba diving. Also known as the hookah system. its when you have a gas powered motor pumping fresh air to the person or person's diving below, there can be up to four people diving off of one hookah system. the benefit of this system is that there is no decompression time and you can be underwater pretty much all day if someone fills the gas tank on the engine pumping air. but you are kinda tied down to something so i don't think its true scuba diving.
What is the vest that you wear in scuba diving called and what is its purpose?
The vest is simply called a scuba vest. It's to hold your air tank and regulators :)
What does spg stand for in reference to scuba diving?
In reference to scuba diving, "SPG" stands for "Submersible Pressure Guage", which tells you how much air is in your tank so you can resurface before going too low on oxygen.
What exactly is scuba diving?
Literally, scuba diving means using diving underwater using Self Contained Underwater Breathing Apparatus.Conventional scuba equipment usually consists of a cylinder of compressed air (worn on the diver's back), and a "regulator" which converts the air from being highly compressed and delivers it to the diver at a breathable pressure.Scuba equipement also technically include rebreathers, which are a much more sophisticated form of diving equipment, whereby the air which the diver breathes is constantly recycled through a carbon dioxide scrubbing system.Scuba diving is now a popular recreational holiday activity, with over 10 million certified scuba divers worldwide.
What is a bailout?
A bailout is an act of rescue, especially of a financial nature, or a backup supply of air in scuba diving.
What does psi mean in scuba diving?
the amount of air in the tank per square inch. (p.s.i.)Improve answerPounds per Square Inch - so the amount of pressure exerted on the tank by the air under pressure in the cylinder of the scuba diver. The more pressure, the more compressed the air so the greater the volume of air compressed within the cylinder.for more on scuba diving, including equipment see the related link:
