What is Nitrox?Enriched Air Nitrox, Oxygen Enriched Air, Nitrox, EANx, Safe AirDeep Breathing Gases commonly used in diving include compressed air and Nitrox. Nitrox is a gas mixture composed of nitrogen and oxygen. Nitrox also contains normal air, which is 78% nitrogen, 21% oxygen and 1% other gases, mainly argon. Scuba diving involves diving with a self-contained underwater breathing apparatus, completely independent of surface power. Providing the diver with the benefits of underwater mobility while still being able to sustain life under underwater pressure. Embolism occurs when gases in the lungs expand during ascent and rupture the lung tissue, causing air bubbles to enter the bloodstream. Use of enriched NitroxAir Nitrox is often used in scuba diving, to reduce the proportion of nitrogen in the breathing gas mixture. Reducing the proportion of nitrogen by increasing the proportion of oxygen reduces the risk of decompression sickness for the same dive profile. (see Appendix 2) Nitrox also allows extended dive times without the need for decompression stops. (see Appendix 3) One of the most important aspects of this application is the extended non-stop time when using Nitrox mixtures. The exact values ​​for extended no-stop times vary depending on the decompression table used to derive the tables used for no-stop times, depending on the percentage of Nitrox used. It is based on the partial pressures of nitrogen at the diving depth. This principle can be used to calculate an equivalent height of air with the same partial pressure as nitrogen. This depth is lower than the actual diving depth for oxygen-enriched mixtures. Nitrox is not a safer gas than alternative compressed air in any respect. Although it ...... middle of paper ...... process of dissolving inert gases from the diver's body.Appendix 4Nitrogen narcosis: Not to be confused with decompression sickness, is a reversible alteration of consciousness that occurs during diving at any depth. It is caused by an anesthetic effect of certain gases at high pressure. The word, derived from narke, means “a temporary decline or loss of senses and movements, a numbness.” It should be noted that narcosis produces a state similar to intoxication (alcohol poisoning) or inhalation of nitrous oxide. This can occur during shallow dives, although it is not usually noticed until depths less than 100 feet (30 m). Appendix 5 Mixing Gases: Filling diving tanks with non-breathing gases such as Nitrox, Trimix and Heliox. Concentrations of inert gases (such as helium and nitrogen) are planned and checked to avoid nitrogen narcosis and decompression sickness..