Emergency ascent
Videos
An emergency ascent is an ascent to the surface by a diver in an emergency. More specifically, it refers to any of several procedures for reaching the surface in the event of an out-of-gas emergency,
Alabama National Guard divers performing a controlled ascent during a training exercise
Buddy breathing
Videos
Buddy breathing is a rescue technique used in scuba diving "out-of-gas" emergencies, when two divers share one demand valve, alternately breathing from it. Techniques have been developed for buddy bre
Emergency ascent
…then by breathing from an ABLJ; then by a shared ascent (buddy breathing from a single second stage) and; as a last resort, by free ascent…
Scuba divers practicing buddy breathing technique during formal training