There are many misconceptions around enriched air diving. This article offers some data diving on enriched air, advantages and disadvantages of diving with enriched air, and equipment used for enriched air diving.Air is essentially a mixture of two gases, approximately 21% oxygen and 79% nitrogen. Nitrogen is the culprit in causing decompression sickness, better known as the "curve". This is important the benefits of air when we speak of enrichment. Enriched air is due to the addition of oxygen in the air, increasing the level of oxygen in the mixture between 22% and 99%. However, for mixed recreational enriched air are from 22% to 40% oxygen. Nitrox is often referred to as "enriched air," but there is a difference between the two. Nitrox refers to any mixture of nitrogen-oxygen-enriched air while the air is adding a little oxygen. Therefore, by definition, only enriched air can hold more than 21% oxygen. The two most common combinations are 32% oxygen (EANx32) and 36% (EANx36). EAN stands for Enriched Air Nitrox.The advantage enriched air first is the extension of the limits beyond unstoppable not to let the normal range in relation to air. From the air enriched with lower nitrogen than air, less nitrogen and control your body is able to metabolize oxygen, assuming that the limits of diving with enriched air recreation. This translates into greater relief for unlimited diving with enriched air. The main disadvantage of enriched air diving is the potential exposure of oxygen toxicity. Oxygen can be toxic based on the depth and duration under water, and to increase the oxygen level in breathing gas, which is limited by the depth and duration. This is why you both need to calculate the no decompression limit due to nitrogen and oxygen partial pressure is called exposure. For most of the repetitions dives below 100 meters, is limited by the amount of gas in place to limit both the decompression or partial pressure limits. Enriched air is particularly effective in increasing the frequency and duration of repetitive diving, because the air is nitrogen lessened.Enriched built within recreational diving limits of less than 40% oxygen requires some special equipment, but mostly You can use the equipment you purchased for air diving. The only new device will definitely need is a tank. One reason is the special marks that have to be on an enriched air tank, the other is that the tank should be cleaned and lubricated by a mixture of exposure to oxygen partial pressure of adding pure oxygen in the air easier . A common pattern is that regulators diving community, BCD, air Spgs and alternative sources can be used with enriched air mixtures up to 40% oxygen, without amendment. However, make sure that every device manufacturer has stated that the equipment for use with enriched air. For gas is mixed with more than 40% oxygen, special equipment is required. As with any diving equipment, regular maintenance is highly recommended, including O-rings and other critical components. Enriched air during their training learn how to properly fill and verify that the mixture of gas in your tank. The verification step is very important and must be performed by the diver, you should not rely on someone else to check their gas blend.Remember should not dive with enriched air unless it is certified by a trusted certification body. While the benefits of diving with enriched air are important, so are the risks.