Respirator n. 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.
... Hands seized Murphy's shoulders. A respirator was held to his nostrils. He thought of his camera, and he could have laughed. Mystery! Excitement! Thrills! Dramatic sequence for Know Your Universe! Staff-man murdered by fanatics! The crime recorded on his own camera! See the blood, hear ... — Sjambak • John Holbrook Vance
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