Another value addition to our carpet shampoo range, the 2X Concentrated BISSELL Pet Formula is safe for all full size carpet cleaning machines. Designed specially to deal with tough pet stains and smells, the BISSELL Pet Formula carpet shampoo is an Earth-friendly formula that contains no heavy metals, phosphates or dyes, whilst the detergents are all biodegradable.2X Concentrated for ease of use and storage, this new bottle is equivalent to 950ml of unconcentrated formula, but because it is concentrated, it's easier to carry, store, and the reduced use of plastics is kinder to the environment.