U.S. Coast Guard Chief Warrant Officer Sean Eversole, an instructor at the Cold Water Ice Diving (CWID) course, removes the air tank from a student at the Minnesota School of Diving, Minnesota, Feb. 1, 2022. The air tank can last up to 45 minutes dependent on depth and weighs about 80 pounds. (U.S. Coast Guard photo by Petty Officer 3rd Class Jessica Fontenette)
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