What should divers always confirm before using enriched air nitrox?

What should divers always confirm before using enriched air nitrox?

• A. The water temperature
• B. The gas mixture's oxygen percentage
• C. The time of day
• D. The visibility at the dive site

Answer: (B)

Before using enriched air nitrox, divers should always confirm the gas mixture's oxygen percentage. This is crucial because enriched air nitrox contains a higher percentage of oxygen compared to regular air. Knowing the exact oxygen content allows divers to plan their dives appropriately, including managing their exposure to oxygen and calculating their no-decompression limits. Each mix of nitrox has specific operational procedures, and divers must ensure that their equipment, dive plans, and personal limits are aligned with the actual oxygen levels of the gas they are using. This practice helps to mitigate the risks associated with oxygen toxicity and ensures overall dive safety.

Before using enriched air nitrox, divers should always confirm the gas mixture's oxygen percentage. This is crucial because enriched air nitrox contains a higher percentage of oxygen compared to regular air. Knowing the exact oxygen content allows divers to plan their dives appropriately, including managing their exposure to oxygen and calculating their no-decompression limits. Each mix of nitrox has specific operational procedures, and divers must ensure that their equipment, dive plans, and personal limits are aligned with the actual oxygen levels of the gas they are using. This practice helps to mitigate the risks associated with oxygen toxicity and ensures overall dive safety.