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Air is really a combination of primarily two gases, around 21% oxygen and 79% nitrogen. Because the "bends" nitrogen could be the culprit in producing decompression sickness, more commonly know. This fact will undoubtedly be essential as enriched air advantages are discussed by us. Enriched air could be the result of adding oxygen to air, raising the level of oxygen in the mixture to between 22% and 99%. Nevertheless, for recreational purposes enriched air blends range from 22% to 40% air. Nitrox is often called "enriched air"; nevertheless there is a difference involving the two. Nitrox identifies any nitrogen-oxygen mixture, while enriched air is air that's some air added. Consequently by definition enriched air can only contain more than 21% oxygen. The two most frequent combinations are 32% oxygen (EANx32) and 36% (EANx36). The acronym EAN stands for Ripe Air Nitrox.
The primary advantageous asset of enriched air would be to increase the no stop limits beyond the standard no stop limits associated with air. Because enriched air has a lower degree of nitrogen than air, less nitrogen is absorbed by you while the human body can metabolize the excess air, assuming you are going within fun enriched air boundaries. This results in longer number decompression limits while diving on enriched air. The principal disadvantage of fishing with enriched air is possible exposure to oxygen toxicity. Oxygen could be toxic predicated on depth and duration under water, and by raising the degree of oxygen in the fuel you breathe, you're constrained by your depth and duration. For this reason you should calculate both your number decompression limit because of nitrogen, and your oxygen coverage limit called partial pressure. For in place of either the number decompression control or the partial pressure limitations most non-repetitive dives under 100 feet, you will be limited by the amount of gas. Ripe air is particularly effective in increasing the duration and frequency of repetitive dives, since nitrogen accumulation is decreased.
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Enriched air diving within the recreational limit of under 401(k) oxygen requires some specific equipment, but for probably the most part you may use the equipment you bought for diving air. The only real new piece of equipment that you will definitely need is really a tank. One reason for this is the special markings that must carry on an enriched air tank; the other is that the tank must be cleaned and lubricated for oxygen exposure to facilitate partial stress mixing involving adding pure oxygen to air. A common diving community principle is that regulators, BCDs, SPGs and alternate air resources works extremely well with enriched air blends around 401(k) oxygen without modification. Nevertheless, you ought to confirm that producer of each and every piece of equipment has certified that equipment for use with enriched air. For fuel mixes with increased then 40% oxygen, special equipment is required. Just like any scuba gear, regular offering is recommended, including O-rings and other critical components. During your ripe air training, you'll learn to properly fill and examine the mixture of gas in your tank. The verification step is very important and must certanly be completed by you the diver; you shouldn't depend on other people to examine your gas mixture.
Remember, you should not dive with enriched air unless you've been authorized by a trustworthy accreditation organization. Therefore are the dangers, while the great things about diving enriched air are significant.
