Cleaning agents are substances used to remove dirt, dust, and other debris from surfaces. LYE is a caustic alkaline substance often used in cleaning products. SOAP is a surfactant that helps to break down dirt and grease. JANITOR is a person who is responsible for the maintenance and cleaning of a building. BORAX is a naturally occurring mineral salt that is used as a cleaning agent. SODA is a type of baking SODA that can be used to clean surfaces. DETERGENT is a surfactant that helps to remove dirt and grease from surfaces. All of these substances are commonly used as cleaning agents.