Specifications include, but are not limited to: m. Wipe surfaces of mechanical and electrical equipment, and similar equipment. Remove excess lubrication, paint and mortar droppings, and other foreign substances. n. Replace parts subject to unusual operating conditions. o. Clean plumbing fixtures to a sanitary condition, free of stains, including stains resulting from water exposure. p. Replace disposable air filters and clean permanent air filters. Clean exposed surfaces of diffusers, registers, and grills. q. Clean ducts, blowers, and coils if units were operated without filters during construction. r. Clean light fixtures, lamps, globes, and reflectors to function with full efficiency. Replace burned-out bulbs, and those noticeably dimmed by hours of use, and defective and noisy starters in fluorescent and mercury vapor fixtures to comply with requirements for new fixtures.