The term 'Maintenance Machine' is a job description for a Vacuum (VAC). A Vacuum is a device that uses suction to remove dirt, dust, and other small particles from surfaces. It is commonly used in households and businesses to clean carpets, furniture, and other surfaces. Vacuums are also used in industrial settings to clean large areas or to remove hazardous materials. Maintenance Machines are responsible for the upkeep and maintenance of Vacuums, ensuring they are in proper working order and performing at their best.