Alcohol can lower the amount of MC needed to cause health problems. Avoid situations that might result in overexposure. If your clothes become soaked with MC, remove them and take a shower. Do not put your clothes back on until they are thoroughly clean and dry. If engineering controls and work practices do not reduce MC exposures to an acceptable level, workers must wear supplied-air respirators.
Respirators are the least preferred method of controlling employee exposures.
Supplied-air respirators must have a clean air supply through the use of compressed air tanks containing air meeting at least the requirements for Grade D breathing air, or a breathing air type compressor with the air intake located in an area with a clean air supply. Filter cartridge respirators cannot be used because MC can pass through available cartridges leaving respirator wearers unprotected.