Respirator Washers protect workers while on the job. It helps employers meet OSHA regulations by thoroughly cleaning and disinfecting respirators and face masks. It is necessary to assure that the appropriate respirator is selected based on the application for use. It is equally important to assure that workers are evaluated for respirator fit and that the devices are cleaned and maintained. When selecting respirators, it is necessary to determine the nature of the hazards. Respirators are required to be effectively cleaned and maintained. They must be continuously evaluated for defects. It must be cleaned and disinfected after each use.