oxygen mask

American  

noun

• oxygen masks
  plural

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

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oxygen mask British  

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

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Other Word Forms

Noun Inflected Forms

• oxygen masks
  plural

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Etymology

Origin of oxygen mask

First recorded in 1915–20

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Example Sentences

See Examples For:

oxygen mask

On Tuesday the inquest was told that Kamangire had been "in and out" of Moroccan-born Jaafri's room on the ward, checking his oxygen mask, on 21 April 2025.

From BBC ● Aug. 18, 2026

First, you need to put on your own oxygen mask before you give $5,000 oxygen masks to each of your family members.

From MarketWatch ● Jun. 3, 2026

“To be clear: had I not donned my oxygen mask on that July flight, we would have killed every person on that aircraft,” Tellman wrote in a letter to his union detailing the experience.

From The Wall Street Journal ● Dec. 22, 2025

Like they say on airplanes, put on your own oxygen mask before helping others with theirs.

From Los Angeles Times ● Dec. 10, 2025

He, Athans, and Burleson placed Beck in an unoccupied tent, bundled him into two sleeping bags with several hot-water bottles, and put an oxygen mask over his face.

From "Into Thin Air" by Jon Krakauer

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