Olefin Pre-Clean is ideal for olefin fiber carpets usually found in offices, clinics, health care facilities, institutions and in many commercial buildings. Its high-grade detergents, solvents and amphoteric surfactants loosen soils adhering to fibers with a static bond plus sticky oils and greases that can cause yellowing and fiber discoloration. Can also be used on soot-damaged synthetic carpets, upholstery and light filtration soil issues.