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English definition of “respirator”

respirator

noun [C] uk   /ˈres.pɪ.reɪ.tər/ us    /-t̬ɚ/
artificial breathing equipment: Doctors put the patient on a respirator.Medical and surgical equipment a device worn over the mouth and nose to prevent harmful substances from being breathed in: The firefighters wore respirators to help them breathe in the smoke-filled house.Things worn to cover the head, face or neckProtective clothing
(Definition of respirator from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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