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

Etymology

Origin of oxygen mask

First recorded in 1915–20

Example Sentences

See Examples For:

oxygen mask

As he was wheeled away to a waiting ambulance, Gil wore an oxygen mask and neck brace, and his face showed bruising.

From Los Angeles Times ● Jul. 5, 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

TV images showed Katoa being fitted with an oxygen mask and put on a stretcher.

From Barron's ● Nov. 3, 2025

He moved the oxygen mask to the side so he could talk.

From "Genuine Fraud" by E. Lockhart