Bissell Cleaning Formula Wash & Protect Stain & Odour Carpet Cleaning, 99K5K has a dual guard action formula deep cleans and protects with Scotchgard in one easy step, leaving your carpets and upholstery smelling clean and fresh The carpet shampoo is universal, having been laboratory tested and found safe to use in all full size carpet cleaners, 3-in-1 machines and rental machines Safe for all full size carpet cleaning machines, and like most Bissell cleaning solutions, it is an Earth-friendly formula that contains no heavy metals, phosphates or dyes, whilst the detergents are all biodegradable Safe to use around small children and even for your pets and does not leave a strong irritating smell Use this regularly to keep your carpet protected from stains and always smelling fresh