Commercial and industrial facilities are kept clean and well-maintained with cleaning chemicals and janitorial supplies. Walls, floors, and other surfaces are cleaned, degreased, sanitized, and disinfected with cleaning chemicals. Mops, brooms, and floor-cleaning devices are used to clean, scrub, strip, buff, polish, and vacuum floors and carpets. Cleaning products are applied to floors and big surfaces using buckets, squeegees, sponges, and other cleaning supplies. Door handle tissues, for example, act as a barrier between hands and door handles, while facial tissues are gentle enough for more sensitive cleaning. Toilet paper and toilet seat coverings help to keep restrooms clean and comfortable. Paper towels are absorbent, disposable sheets that can be used to clear spills, wipe surfaces and equipment, and dry hands and faces.