Why is monitoring for signs of oxygen toxicity crucial when on EANx dives?

Monitoring for signs of oxygen toxicity during EANx dives is critical because taking immediate action if symptoms appear can prevent serious health consequences. Oxygen toxicity occurs when a diver is exposed to elevated partial pressures of oxygen, which can lead to a range of symptoms, such as visual disturbances, respiratory distress, or convulsions. These symptoms can escalate rapidly and may result in incapacitation underwater, posing a significant risk to the diver's safety and potentially endangering their dive buddy.

Recognizing early signs of oxygen toxicity allows divers to modify their depth or terminate the dive altogether, ensuring their safety and well-being. Prompt action can significantly mitigate the risks associated with oxygen toxicity, making it essential for divers using enriched air nitrox to stay vigilant and respond effectively to any symptoms that arise during their dive.