Which term best describes the action of pushing air out to clear water from your regulator?

The term that best describes the action of pushing air out to clear water from your regulator is "Air purge." This term specifically refers to the technique used by divers to expel water trapped in the regulator during a dive. This action involves exhaling while allowing the air to escape, which helps to clear any water from the mouthpiece, ensuring that the diver can breathe comfortably and safely.

Understanding the context of clearing water from the regulator is crucial for divers, as it maintains the functionality of the equipment and aids breathing efficiency underwater. Utilizing techniques like air purging ensures that the diver can manage any issues with water ingress effectively. Other terms previously considered do not specifically convey the same action related to clearing water from a regulator.