QP-ON 9.5 Green ECO QP Refill packs are based on glucose, free of toxins, biocides and other dangerous chemicals. Considered a green product. Biodegradable, according to the European Ecolabel. Sold in liquid form, with a fresh scent. Can be used with any commercial cleaning and high pressure machine (once it is dissolved). Will dissolve in a matter of seconds in contact with water. Will greatly enhance the cleaning results!