Foot switches and foot-switch guards, also known as pedal switches, allow operators to control machinery, equipment, and tools with their feet while keeping their hands free for other tasks. Electrical foot switches connect with compatible power sources to control electrical circuits and machinery. Pneumatic foot switches operate on compressed air and are suitable for use in wet environments. Hazardous-location foot switches have constructions that allow them to operate in environments where flammable gases, liquids, particles, and other combustible materials are present. Foot switch guards and foot shields cover the actuator to help prevent accidental engagement.