supplied-air respirator


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supplied-air respirator

[sə′plīd ¦er ′res·pə‚rād·ər]
(engineering)
An atmospheric-supplying device which provides the wearer with respirable air from a source outside the contaminated area; only those with manual or motor-operated blowers are approved for immediately harmful or oxygen-deficient atmospheres.
References in periodicals archive ?
The spray-painter and his helper should have been using supplied-air respirators.
2) Supplied-air respirators had not been used during sandblasting.
Without any operating dust collection equipment, workers in the Concentrator area must be provided with Powered Air-Purifying Respirators (PAPRs), or supplied-air respirators in continuous flow mode, to protect them against inhalation exposures to silica dust, instead of the paper filtering facepieces currently in use.