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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.
He was dressed in full black, with a gas mask and ballistic helmet covering his face and head, as well as a bullet-resistant vest, leggings, a throat protector, a groin protector and tactical gloves. Mary Walrath-Holdridge, USA Today, 21 Nov. 2025 The Justice Department said in a 2024 news release that Wilson was a militia member who entered the building in a gas mask. Kerry Breen, CBS News, 16 Nov. 2025 Photos and video from downtown Los Angeles show police officers in helmets and some wearing gas masks. Stephen Sorace, FOXNews.com, 2 Nov. 2025 While searching the two suspects, police found gas masks and a fake suicide note addressed to Mills purporting to be from her husband, according to authorities. Liam Quinn, PEOPLE, 21 Oct. 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 29 Nov. 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
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