oxygen mask

American  

noun

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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Etymology

Origin of oxygen mask

First recorded in 1915–20

Example Sentences

You’ve heard the instructions: “Put on your own oxygen mask before putting one on your child.”

From MarketWatch

Starting to feel confused and worried he might pass out, Tellman reached for his oxygen mask.

From The Wall Street Journal

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

From Los Angeles Times

The incident was declared a major emergency as 186 personnel were deployed to the scene of the hazardous material fire wearing protective gear such as body suits and oxygen masks.

From Los Angeles Times

Hazardous materials are in several of the cargo containers involved in the blaze and all firefighters are wearing protective suits and oxygen masks, according to LAFD.

From Los Angeles Times