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
Example Sentences
Recent Examples on the Web Webster then tackled Rathbun and tried to tear off his helmet and gas mask, which choked Rathbun with the helmet's chinstrap. 
Bart Jansen, USA TODAY, 1 Sep. 2022 The gunman -- who remains at large -- donned a gas mask and detonated a smoke canister before pulling out a gun and opening fire, a police official told ABC News. Emily Shapiro, ABC News, 13 Apr. 2022 Justyna Muszynska, a 17-year-old high school student, was among those spending a full day last month at the training center northwest of Warsaw — practicing how to build a shelter, put on a gas mask, fire a gun. Anthony Faiola, Washington Post, 3 July 2022 Before the attack, the suspect put on a gas mask, say police. Chris Harris, PEOPLE.com, 12 Apr. 2022 Authorities said at an earlier press conference that the lone gunman put on a gas mask, deployed a smoke canister, and when the subway car filled with smoke, opened fire inside the car and on the platform. Libby Cathey, ABC News, 12 Apr. 2022 Gaiman chose Sandman — a creation that had first appeared in the 1930s in the form of millionaire Wesley Dodds, a vigilante who donned a gas mask and sedated criminals at night for the police to find. Elizabeth Evitts Dickinson, Washington Post, 6 July 2022 Authorities also tracked the purchase of a gas mask to James through an eBay account, two officials said. Artemis Moshtaghian, CNN, 14 Apr. 2022 In addition, his gas mask is featured at the Museum of Firefighting Hall of Flame in Phoenix, Ariz. Fox News, 15 July 2022 See More
Bart Jansen, USA TODAY, 1 Sep. 2022 The gunman -- who remains at large -- donned a gas mask and detonated a smoke canister before pulling out a gun and opening fire, a police official told ABC News. Emily Shapiro, ABC News, 13 Apr. 2022 Justyna Muszynska, a 17-year-old high school student, was among those spending a full day last month at the training center northwest of Warsaw — practicing how to build a shelter, put on a gas mask, fire a gun. Anthony Faiola, Washington Post, 3 July 2022 Before the attack, the suspect put on a gas mask, say police. Chris Harris, PEOPLE.com, 12 Apr. 2022 Authorities said at an earlier press conference that the lone gunman put on a gas mask, deployed a smoke canister, and when the subway car filled with smoke, opened fire inside the car and on the platform. Libby Cathey, ABC News, 12 Apr. 2022 Gaiman chose Sandman — a creation that had first appeared in the 1930s in the form of millionaire Wesley Dodds, a vigilante who donned a gas mask and sedated criminals at night for the police to find. Elizabeth Evitts Dickinson, Washington Post, 6 July 2022 Authorities also tracked the purchase of a gas mask to James through an eBay account, two officials said. Artemis Moshtaghian, CNN, 14 Apr. 2022 In addition, his gas mask is featured at the Museum of Firefighting Hall of Flame in Phoenix, Ariz. Fox News, 15 July 2022 See More Word History
First Known Use
1915, in the meaning defined above
Kids Definition
gas mask
noun
: a mask connected to a chemical air filter and used to protect the face and lungs from 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