What can happen if a diver exceeds the no-decompression limits while using EANx?

Exceeding the no-decompression limits while using Enriched Air Nitrox (EANx) can indeed lead to decompression sickness (DCS). DCS occurs when nitrogen bubbles form in the body due to rapid ascent or remaining at depths that exceed the limits set for safe decompression. When divers use EANx, they are breathing a gas mix that has higher levels of oxygen and lower levels of nitrogen compared to air. While this can improve certain aspects of a dive, it does not eliminate the risks associated with exceeding no-decompression limits.

When divers exceed these limits, they may have to perform safety stops or even go through staged decompression to allow excess nitrogen to be safely eliminated from their systems. Ignoring these limits increases the risk of developing bubbles in tissues, joints, or even blood, which can lead to serious health issues requiring medical attention. Thus, it is critical for divers to adhere to no-decompression limits to maintain their safety underwater.