Janitorial falls under the category of facility maintenance and management. Facility maintenance and management refers to the activities involved in maintaining and managing the physical assets of a building or facility. This includes cleaning, repairing, and maintaining the building and its systems, as well as managing the use of space and resources. Janitorial work involves explicitly cleaning and maintaining the interior and exterior of a building or facility, including tasks such as sweeping, mopping, dusting, and trash removal.