title: Respirator compensation of a portable air monitor.
abstract: A respirator-compensated, portable air-monitor has been devised by modifying a commercially available personal air sampling pump. A switching circuit box, integrated into the sampling pump electrical system and activated by a micro switch mounted within the respirator mask, turns the pump off and a timer on whenever the respirator is worn. Thus, valid measurements of an individual worker's environmental exposures can be made even though that worker uses a respirator at his own discretion.
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis; D000397:Air Pollution / Q000032:analysis; D004581:Electronics / Q000295:instrumentation; D004781:Environmental Exposure; D006801:Humans; D009787:Occupational Medicine / Q000295:instrumentation*; D011482:Protective Devices; D012134:Respiratory Protective Devices
chemical_list: D000395:Air Pollutants, Occupational