OFMD manages the maintenance and operation of more than 65 buildings, encompassing over 14.8 million gross square feet, including the 11-story, 609,000-square-foot Neuroscience Research Building (NRB), home to one of the world's largest concentrations of neuroscientists. Operates vacuum cleaners, auto scrubbers, buffers, and mop wringers; uses mops, brooms, brushes, soap, cleaning chemicals, floor finish, and other materials related to building cleaning.