The BISSELL® 2X Ultra Concentrated Pet Stain & Odor Advanced Formula is a patented odor elimination formula that penetrates fibers to remove pet odors. The formula deep cleans to remove pet and household soils. The 2X Formula is concentrated to provide same great cleaning to remove soil and stains. Specifically formulated to work in all BISSELL® and Dirt Devil® portable deep cleaning machines. The 2X Ultra Concentrated Formula comes in smaller bottles making it easier for consumers to use, and take up less shelf space. This formula is earth friendly and contains biodegradable detergents. It contains no phosphates, dyes, optical brighteners or heavy metals. The Bottle is made from at least 25% post consumer recycled plastic and both the bottle and cap are recyclable. Smaller bottles mean less plastic wasted and fewer trucks used to ship the same amount of formula. This formula is recognized for safer chemistry by US EPA"s Design for the Environment (DfE) Program. To speak with a product specialist regarding questions on any BISSELL product, please call 1-800-854-7366, Monday – Friday, between 8 am & 5 pm EDT.