Definition of gas mask in English:

gas mask

Line breaks: gas mask

noun

A protective mask used to cover a person’s face as a defence against poison gas.
More example sentences
  • Take care of your gas mask and your gas mask will take care of you.
  • The main defence against them is protective clothing - gas masks and special suits made of rubber or treated synthetic cloth.
  • ‘I think it was to test the sort of rubber they used for protective clothing and gas masks,’ he said.

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