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.
Wearing nothing but gas masks, Hal and Lois sneak inside the noxious home to do the deed in privacy from their kids. Glenn Garner, Deadline, 9 Apr. 2026 But in the end, the gang manages to trick Soldier Boy into going for an empty tube while Frenchie dons a gas mask and pours out the virus. Ben Rosenstock, Vulture, 8 Apr. 2026 Protesters quickly flocked to the scene and clashed with other officers, who were wearing gas masks and helmets. Steve Karnowski, Los Angeles Times, 7 Apr. 2026 Some protesters wearing shields and gas masks on the other side of a fence at the federal complex picked up the canisters and tossed them back at police. City News Service, Daily News, 29 Mar. 2026 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 17 Apr. 2026.

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

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