Up To 10 mg/m3 : Supplied Air Respirator (SAR)
operated in a continuous-flow mode, eye
protection needed; or full-facepiece respirator
with high-efficiency particulate filter(s);
or powered air-purifying respirator with dust and
mist filter(s), eye protection needed; or full facepiece
Self-Contained Breathing Apparatus
(SCBA); or fullfacepiece SAR.
Emergency or Planned Entry into Unknown
Concentrations or IDLH Conditions: Positive
pressure, fullfacepiece SAR; or positive pressure,
full-facepiece SAR with an auxiliary positive
pressure SAR.
ESCAPE: Full-facepiece respirator with highefficiency
particulate filter(s); or escape-type
SCBA