ABSTRACT
This chapter deals with the concept of control including its aims, types and the hierarchy of control. It focuses on ventilation such as local exhaust ventilation, general dilution ventilation and the design of ventilation systems. The chapter discusses the use of personal protective equipment as a control option along with guidance on how to select, use and maintain respiratory protection devices. The hierarchy of control is a list of control options that have been placed in a preferred order. It addresses the three mechanisms for exposure reduction with an alternative categorisation scheme: elimination, substitution, engineering, administration and personal protective equipment. Segregation or isolation relies on the principle of enclosing either the hazard or worker to restrict movement of the hazard. Guarding and signage reduce the path between the hazard source and the worker. Education arid training assist workers in performing their work safely. Cross-contamination between the workplace and home can occur where dirty work clothes are taken home for washing.
