gas mask


noun

a masklike device containing or attached to a component that filters the air inhaled by the wearer through charcoal and chemicals, for protecting the face and lungs against noxious gases and fumes, as in warfare or in certain industrial processes.

Origin of gas mask

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for gas mask

gas mask


noun

a mask fitted with a chemical filter to enable the wearer to breathe air free of poisonous or corrosive gases: used for military or industrial purposesAlso called (in Britain): respirator
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012