Any self-contained breathing apparatus with a full facepiece. Any supplied-air respirator with a full facepiece. May need acid gas sorbent. Any self-contained breathing apparatus with a full facepiece. Under conditions of frequent use or heavy exposure, respiratory protection may be needed.
Respiratory protection is ranked in order from minimum to maximum.
Consider warning properties before use. Any air-purifying respirator with a full facepiece and an organic vapor canister. May explode on contact with water. Avoid contact with combustible materials. Dangerous gases may accumulate in confined spaces.