What is one of the key characteristics of Nitrox compared to regular air?

One of the fundamental characteristics of Nitrox is its higher oxygen content compared to regular air. Regular air comprises approximately 21% oxygen and 79% nitrogen. Nitrox, often referred to as Enriched Air Nitrox (EAN), typically has a higher proportion of oxygen, which can range from 22% to 40%. This increase in oxygen can lead to several benefits for divers, such as extended bottom times and reduced nitrogen absorption, which can decrease the risk of decompression sickness.

The higher oxygen concentration in Nitrox is particularly advantageous when diving to moderate depths, allowing divers to extend their exposure time while also enhancing safety. It's essential to be aware of the specific oxygen percentage when planning dives, as higher oxygen levels can also introduce the risk of oxygen toxicity if certain depth limits are exceeded. Thus, the key characteristic that distinguishes Nitrox from regular air is indeed its increased oxygen content.