Document DvLEg9o5GmjBwpqGN5KD1G2o

RESPIRATORY PROTECTION FOR LEAD (OSHA) Concentration of Lead or Condition of Use Respirator Type! Not in excess of 0.5 mg/m3 (10X PEL.) Not in excess of 2.5 mg/m3 (50X PEL.) Not in excess of 50 rag/m^ (1000X PEL.) Not in excess of 100 mg/m^ (2000X PEL.) Greater than 100 mg/tn^ unknown concentration or fire fighting. Half-mask, air-purifying respirator equipped with high efficiency filters.2. 3 Full facepiece, air-purifying respirator with high efficiency filters. (1) Any powered, air-purifying respirator with high efficiency filters; or (2) Half-mask supplied-air respirator operated in positive-pressure mode.2 Supplied-air respirators with full facepiece, hood, helmet, or suit operated in positive-pressure mode. Full facepiece, self-contained breathing apparatus operated in positive-pressure mode. 1 Respirators specified for high concentrations can be used at lower concentra tions of lead. 2 Full facepiece is required if the lead aerosols cause eye or skin irritation at the use concentrations. 3 A high efficiency particulate filter means 99.97 percent efficient against 0.3 micron size particles. JMH:LO (24-G)B26 07/03/79 TEN 6227