Specifications include, but are not limited to: The Vendor must ensure all work is conducted in accordance with OSHA safety regulations. d. Window frames to be cleaned using appropriate product and rinsed clean. Surrounds of window frames to be cleaned of cobwebs, dirt and other soils. e. Window ledges to be free of any overrun water, chemicals or dirt from cleaning operations. f. The Vendor must ensure that materials used to clean the solar film causes no damage. (See window tint care instructions). The nature of these windows is such that any scrubbing action may distort surface appearance. Windows will be cleaned using a lamb’s wool or similar microfiber applicator and rubber squeegee, thereby reducing the possibility of scratches, etc