Formulated for special jobs such as asphalt parking lot track-off or for use on solution dyed nylon, polypropylene, white or off-white wool, Berber and light-colored carpet. Excellent for the tough carpet cleaning jobs. No added fragrance. Can be used for everyday or restoration cleaning. Safe, nontoxic, natural and biodegradable. Natural Organic Absorption. A soft, natural product that works in much the same way as an ordinary kitchen sponge. Just like you would use a sponge to wipe up a spill, or to wash and absorb dirt from a counter or wall, Host is used to wash and absorb dirt from your carpet fibers.