What Is NITROX?

Mother nature provides us with a breathing gas called air. However she never said air is the perfect gas for breathing under water. Air contains approximately  21% oxygen and 79% nitrogen. When the percentage of oxygen is increased and therefore the percentage of nitrogen decreased, we call it Enriched Air Nitrox or EANx.

Contrary to believes that Nitrox is used only in deep diving - in fact the ideal depth for breathing Nitrox is  between 12 and 40 meters, which is the accepted sport diving depth. When properly used, EANx can provide the sports diver with following advantages:

- Longer no decompression dive time
- Less decompression
- Less decompression stress
- Shorter surface interval time
- Longer repetitive dive time
- Additional safety if used with air tables/computers

Seeing the great advantages Nitrox can contribute to the safety and enjoyment of sport divers, major international training agencies have now taken up EANx into their training program. More and more dive centers and resorts have now  nitrox available.

Recreational divers use mixtures up to 40% oxygen and 60% nitrogen (EAN40). However most commonly  used standard mixtures are now EAN32 and EAN36.
Technical divers are using any mixture of up to 100% oxygen in order to reduce decompression obligation and to increase safety.
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For more information contact: bjtioman@tm.net.my or  jc_chappuis@hotmail.com