Specifications include, but are not limited to: GENERAL CLEANING: Entrances - The entrance to buildings or areas shall have floors, glass and general cleaning within the limits established in specifications. Lights - Fixtures shall be free of obvious dust and soil. Window Ledges - All shall be free of dust, trash and spots. Walls/Air Grilles - The areas around doors, water fountains, switches and windows shall be free of soil and spots. Air supply and return grilles will be kept free of spots, dust, dirt, and lint. Ceiling Fans - Blades will be free of dust and cleaned as needed. Office Chairs - All office chairs shall be dusted or brushed off. Chairs in the public seating area are to be clean and straightened into a line. High Dusting - Surfaces above six (6) feet shall be free of dust. Ceiling fans are to be cleaned monthly or as needed. Dust Mopping/Sweeping—Floor areas including under obstructions and corners shall be free of soil and surface dirt.