oxygen mask

noun

1. a masklike device placed or worn over the nose and mouth when inhaling supplementary oxygen from an attached tank.

oxygen mask

noun

1. a device, worn over the nose and mouth, to which oxygen is supplied from a cylinder or other source: used to aid breathing

Word History and Origins

Origin of oxygen mask¹

First recorded in 1915–20

Example Sentences

Have you ever seen 45,000 people roar with happiness while simultaneously calling for oxygen masks?

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Meanwhile pilots had donned oxygen masks, declared an emergency and were turning back to Atlanta, according to a National Transportation Safety Board report.

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He made a series of court appearances in a wheelchair, wearing a three-piece suit and an oxygen mask, maintaining his claim of mistaken identity.

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It accused some of the children of adopting "confrontational behaviour"... such as "attempting to loosen life jackets, tampering with overhead oxygen masks and removing a high-pressure oxygen cylinder", violating air safety laws.

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But the French investigation reported it was instead likely the fire started in an oxygen mask storage box within the cockpit.

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