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Designed to provide field-proven performance with an innovative, removable design, the Black Diamond AvaLung Element is a lightweight avalanche safety tool that significantly extends fresh air supply in the event of an avalanche burial. By pulling fresh air from the surrounding snowpack and directing exhaled CO2 out an exhaust port and away from the face, the AvaLung Element can increase usable air supply under the snow by up to four times. The unit is compatible and easy to install on any AvaLung-ready backpack, and fully removes for four-season pack usage.