8.4 Inhalation Protection

When a chemical is used in a way that may present an inhalation hazard, measures must be taken to control exposure. This is primarily accomplished in the laboratory through proper use of a chemical fume hood. When procedures cannot be performed in a fume hood or ventilation is not adequate to provide protection against inhalation hazards, respiratory protective equipment may be necessary. Respirators should be the last option chosen for controlling inhalation hazards.