gas mask

noun

: a mask connected to a chemical air filter and used to protect the face and lungs from toxic gases
broadly : respirator sense 1

Examples of gas mask in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Several other protesters, some wearing gas masks, were also arrested in separate incidents. Center Square, The Washington Examiner, 31 Aug. 2025 The film grips the attention from the opening frames – grainy archive footage of a man wearing a gas mask who drives a pickup truck down a road bordered by white cylindrical storage containers. Matthew Carey, Deadline, 29 Aug. 2025 Lyons said that after recent operations in Los Angeles turned violent, ICE is making gas masks and helmets standard issue for new agents. Rebecca Santana, Chicago Tribune, 24 Aug. 2025 The earlier memo requested the distribution of at least 135 military-grade gas masks to support DPS in Houston, 175 in San Antonio and 230 in Austin. Bayliss Wagner, Austin American Statesman, 30 July 2025 See All Example Sentences for gas mask

Word History

First Known Use

1915, in the meaning defined above

Time Traveler
The first known use of gas mask was in 1915

Browse Nearby Words

Cite this Entry

“Gas mask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gas%20mask. Accessed 9 Sep. 2025.

Kids Definition

gas mask

noun
: a mask connected to a chemical air filter and used to protect the face and lungs against harmful gases

Medical Definition

gas mask

noun
: a mask connected to a chemical air filter and used to protect the face and lungs from toxic gases
broadly : respirator sense 1

More from Merriam-Webster on gas mask

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!