How does the use of EANx potentially impact training requirements?

The correct answer highlights the importance of additional training when using Enriched Air Nitrox (EANx) for diving. Enriched air has a higher percentage of oxygen than regular air, which introduces unique physiological effects and potential risks, particularly related to oxygen toxicity and narcosis. This requires divers to have a deep understanding of the specific scenarios they may encounter.

With EANx diving, divers must learn about the appropriate mix of gases, how to calculate and manage their no-decompression limits, and the implications of using different percentages of oxygen. Additionally, deeper knowledge of dive planning, gas management, and emergency procedures is vital to safely utilize the benefits that enriched air provides, such as longer bottom times and shorter surface intervals.

This necessity for thorough understanding and practical skill-building reflects the increasing complexity of diving with nitrox compared to air diving. Therefore, divers seeking certification or training in EANx must engage in specialized training to address these unique considerations.