Which factor is critical to calculate when planning a dive with EANx?

Get ready for the SSI Specialty Course Enriched Air Nitrox (SC-EAN) 40% Level 2 Test. Review key concepts with flashcards and multiple choice questions, complete with hints and detailed explanations. Prepare for success!

Calculating the maximum operating depth (MOD) is essential when planning a dive with Enriched Air Nitrox (EANx) as it directly affects safety and compliance with dive tables or dive computers. The MOD represents the deepest depth at which a specific mix of EANx can be safely used without risking oxygen toxicity. The higher the percentage of oxygen in the gas mix, the shallower the MOD will be. Understanding and adhering to the MOD helps divers avoid complications associated with elevated oxygen levels, ensuring a safe dive experience.

While surface interval time, water temperature, and dive buddy experience are all important factors in dive planning, they do not specifically pertain to the hazards associated with using a gas mixture enriched with oxygen. Surface interval time mainly concerns the risk of decompression sickness, water temperature affects comfort and potential thermal protection needs, and buddy experience is vital for overall dive safety, but MOD is unique in its direct calculation based on the specific gas used in EANx dives. Understanding MOD is fundamental for any diver utilizing enriched air to ensure safety and optimal dive enjoyment.

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