WITH ACTIVATED CARBON - HIGH EFFICACY IN THE ABSORPTION OF ODORS AND LIQUIDS Our 100% natural activated carbon is produced with coconut shells, a regenerable raw material. Activated carbon is a very porous material, characterized by a huge internal surface. If we open even 2 grams of activated carbon on the flat, we will obtain an area the size of half the football field (2,000 square meters or even more). Thanks to particular physical forces, the odorous substances bind very effectively and stably to the activated carbon. This simple principle is called "van der Waals forces". Thanks to the huge surface that characterizes it and the van-der-Waals forces, activated carbon is able to absorb an incredible amount of odors with great efficiency at the same time Activated carbon is used in the home, successfully,already for a long time: in the extractor hoods or in the odor filters of refrigerators, in the water filters, in the insoles for shoes, etc. How to use: fill the cat's clean toilet with about 7 cm of litter. Remove the clods that form in the toilet daily. Discard in domestic waste or biodegradable waste (please observe the municipal indications); do not throw in the toilet. Restore only the missing quantity.