title: Air-purifying powered respirator pack utilizing a miniature two-stage air mover.
abstract: Design and construction of a moderate-weight, battery-powered, positive-pressure respirator pack is described. Design detail of a two-stage air mover is given, along with its adaptation for use as a portable air sampler.
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis; D011482:Protective Devices / Q000295:instrumentation; D012134:Respiratory Protective Devices / Q000295:instrumentation
chemical_list: D000395:Air Pollutants, Occupational