37 Janitorial services, and property maintenance and repair services, namely, painting, servicing of specialized air pollution devices, replacing filters and routine servicing of HVAC equipment; servicing of cleaning equipment; servicing of industrial vacuums, removal of fabrication dust, and removal and preparation of waste and scrap materials for recycling provided to owners or managers of properties, buildings, facilities, campuses, sites, plants, institutions, industrial parks, residential buildings and communities, schools, hospitals, healthcare facilities, shopping malls and businesses of all types; mechanical maintenance services