What color is an oxygen tank supposed to be in the U.S.?
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Oxygen tanks in the U.S are supposed to be green. The international standard is white.
But no matter what color the tank is, ALWAYS read the tag or label on the tank first to verify the gas contents inside. One instructor in Surgical Nursing and Anesthesia has reported seeing a green tank accidentally containing carbon dioxide instead of oxygen!
Nitrous oxide tanks (laughing gas) are blue. (Try remembering this: “Laughing gas chases the blues”).
