RESPIRATOR
gasmask, respirator, gas helmet
(noun) a protective mask with a filter; protects the face and lungs against poisonous gases
respirator, inhalator
(noun) a breathing device for administering long-term artificial respiration
Source: WordNet® 3.1
Etymology
Noun
respirator (plural respirators)
A device designed to allow breathing when it would otherwise be hindered, as by a medical condition or the presence of poisonous vapors.
Hyponym: ventilator
Anagrams
• airporters, parrotries
Source: Wiktionary
Res"pi*ra`tor (rs"p*r`tr), n. Etym: [Cf. F. respirateur.]
Definition: A divice of gauze or wire, covering the mouth or nose, to
prevent the inhalation of noxious substances, as dust or smoke. Being
warmed by the breath, it tempers cold air passing through it, and may
also be used for the inhalation of medicated vapors.
Source: Webster’s Unabridged Dictionary 1913 Edition