During a dive, what does "buddy breathing" refer to?

"Buddy breathing" specifically refers to the practice of using a single regulator to share air between divers. This technique is particularly critical in emergency situations where one diver may need to share their air supply with another who is out of air or experiencing difficulties. The process involves one diver taking the regulator from their mouth and passing it to their partner, allowing the second diver to breathe from it.

This method emphasizes the importance of communication and coordination between dive buddies, as it requires both divers to stay calm and manage their breathing effectively to ensure that both can stay underwater safely. Understanding this technique is crucial for divers, as it prepares them for unforeseen circumstances where air supplies may be compromised.