What is the primary benefit of using Enriched Air Nitrox for diving?

The primary benefit of using Enriched Air Nitrox for diving is the ability to achieve longer bottom times and shorter surface intervals. This advantage arises because Enriched Air Nitrox typically contains a higher percentage of oxygen (generally between 32% and 36%) compared to regular air, which contains approximately 21% oxygen. By increasing the oxygen content, divers can reduce their exposure to nitrogen, which directly impacts the formation of nitrogen bubbles in the body during ascent.

With reduced nitrogen absorption, divers can extend their time spent at certain depths without incurring the same level of risk for decompression sickness that is associated with diving on air. Furthermore, shorter surface intervals are made possible because the reduced nitrogen build-up allows for quicker surface recovery times between dives. This combination significantly enhances the overall diving experience, allowing for more time underwater and less waiting on the surface between dives.

Other options like increased buoyancy control and improved visibility underwater do not inherently come from the use of Enriched Air Nitrox, nor is there a direct relation between Nitrox and lower equipment costs. Thus, the aspect of longer bottom times and shorter surface intervals directly correlates with the benefits of using Enriched Air Nitrox in diving scenarios.