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.
Groups of demonstrators, many wearing gas masks and other face coverings, linked arms in a human chain in front of Delaney Hall in Newark on Wednesday night, videos and photos posted on social media show. ABC News, 28 May 2026 Federal authorities used pepper spray, but some demonstrators came prepared with gas masks and shields. Christine Sloan, CBS News, 28 May 2026 Thomas Webster, who was convicted by a jury of assaulting law enforcement with a metal flagpole, tackling a police officer to the ground and trying to remove the officer's gas mask. Tom Dreisbach, NPR, 26 May 2026 All that changed when a video was leaked less than an hour before the start of the draft of Tunsil with a homemade bong-gas mask hybrid that would make Jeff Spicoli proud. Austin Perry Outkick, FOXNews.com, 22 Apr. 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 3 Jun. 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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