What personal protective equipment (PPE) should first responders use?
When an active release is occurring, or the release has stopped but there is no information about the duration of the release or the airborne concentration of nerve agents, don level A protection. The requirement of OSHA’s Hazardous Waste Operations and Emergency Response (HAZWOPER) standard (29 CFR 1910.120(q)) provides additional information for responding to hazardous substance releases, including blister agents. For additional information see CBRN Personal Protective Equipment Selection Matrix for Emergency Responders – Blister Agents.