How can divers effectively manage their air supply?

Divers can effectively manage their air supply primarily by frequently checking their gauge. This practice allows them to monitor their remaining air as they dive, ensuring they maintain awareness of their consumption rate and can make informed decisions about their dive. Regularly consulting the gauge helps divers plan for a safe ascent and conduct safety stops if necessary, avoiding situations where they might run low on air unexpectedly.

While descending deeper might affect air consumption, it is not a recommended strategy for managing air supply effectively. Similarly, changing breathing techniques may help some divers be more efficient, but it's not a guaranteed method for everyone and does not replace the necessity of monitoring air levels. Limiting communication with a buddy could also be detrimental, as good communication is essential for ensuring safety and addressing any potential issues that may arise during the dive.