What is a potential risk of not managing maximum depth properly while using EANx?

When using Enriched Air Nitrox (EANx), one of the primary considerations is the management of maximum depth. This is crucial because EANx contains a higher percentage of oxygen than regular air, which can lead to increased oxygen toxicity when diving at greater depths. As depth increases, the partial pressure of gases increases, meaning that you absorb nitrogen and oxygen at higher rates.

If divers exceed their maximum depth while using EANx, they can absorb excessive nitrogen, especially when combined with a longer bottom time. This excessive nitrogen absorption can lead to decompression sickness (DCS) if the diver ascends too quickly, as nitrogen comes out of solution and forms bubbles in the body, which can cause various physiological problems.

Thus, managing maximum depth is essential to avoid the risk of DCS, which is a significant hazard in diving. This understanding underscores the importance of adhering to dive plans and being aware of the effects of depth on gas absorption and toxicity levels related to the specific gas mixture being used.