How should a diver react when faced with a low air supply situation?

In a low air supply situation, the most appropriate reaction for a diver is to signal their buddy and begin ascending. This response prioritizes safety and ensures that both divers can proceed together while maintaining communication. Ascending is critical because air supply is limited, and staying at depth can increase the risk of complications, such as running out of air.

By signaling the buddy, the diver communicates the urgency of the situation, allowing for a coordinated ascent. It’s important to rise slowly and safely to avoid the dangers of decompression sickness. Diving should always emphasize planning and effective communication, and taking decisive action in low air situations is a fundamental aspect of diver safety and emergency management.

Other responses might lead to unsafe practices or potential hazards. For instance, continuing the dive without addressing the air supply issue can quickly turn dangerous. Increasing physical exertion in an attempt to ascend faster may lead to rapid air depletion and increase the risk of panic or accidents. Ignoring the warning and monitoring until returning is also precarious, as it could result in an emergency if the air supply becomes critically low.