respirator

n. device used for artificial respiration in patients who cannot breathe independently (Medicine); gas mask, mask that protects against poisonous fumes (British); mask that prevents inhalation of dangerous substances

A respirator is a device designed to protect the wearer from inhaling harmful dusts, fumes, vapors, and/or gases. Respirators come in a wide range of types and sizes used by the military, private industry, and the public.There are two main categories: the air-purifying respirator, which forces contaminated air through a filtering element, and the air-supplied respirator, in which an alternate supply of fresh air is delivered. Within each category, different techniques are employed to reduce or eliminate noxious airborne contents.
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Respirator /res·pi·ra·tor/ ventilator. cuirass respirator see under ventilator. Drinker respirator popularly, “iron lung”: an apparatus formerly [more]Respirator - Community and Resources

Noun
1. a breathing device for administering long-term artificial respiration
(synonym) inhalator
(hypernym) breathing device, breathing apparatus, breathing machine, ventilator
(hyponym) iron lung
(part-meronym) mouthpiece
(derivation) breathe, take a breath, respire, suspire
2. a protective mask with a filter; protects the face and lungs against poisonous gases
(synonym) gasmask, gas helmet
(hypernym) mask

n. inspirator, respirator