OAR 437-007-0345: Respiratory Protection

(1) When employees are exposed to air contaminants that exceed applicable permissible exposure limits (PEL) as required by Division 2/Z, OAR 437-002-0382, Oregon Rules for Air Contaminants, the employer must provide and enforce the use of respiratory protective equipment as required in Division 2/I, §1910.134. (2) Employees must be provided protection from dust when exposed to total dust levels of 10 milligrams per cubic meter of air per 8-hour time-weighted average (TWA). (3) If respirators are used for protection from dust, created by the operation of machines, the employer must follow the requirements of Division 2/I, §1910.134, or the requirements of 437-007-0350.