It is made of high-quality granular activated carbon and non-woven fabrics compounded by a specific production process. It has the characteristics of good adsorption, high strength, easy forming, low resistance and long service life, good adsorption effect on benzene, formaldehyde, sulfur oxides, ammonia and other polluting gases, and can also filter particles. It can be used for indoor and automobile air purification, and can also be used for industrial and domestic water purification.