Why is it important to monitor air supply during a dive?

Monitoring air supply during a dive is crucial primarily to prevent running out of air and to ensure a safe ascent. As divers descend, the pressure increases, compressing the air in their tanks and affecting their air consumption rate. By keeping a close eye on their air supply, divers can plan their ascent and any necessary safety stops, according to their air usage rates and the depth of their dive.

Running low on air can lead to dangerous situations, including the potential for panic, making poor decisions, or failing to complete the necessary decompression stops if an ascent is attempted too quickly. Therefore, consistent monitoring of air supply contributes to maintaining safety and enhancing the overall diving experience. This practice ensures that divers can manage their time underwater efficiently while adhering to safety protocols, ultimately leading to safer and more successful dives.