The product is made of modified granular activated carbon and silver ion antibacterial bottom cloth, which are combined by specific production process. It has the characteristics of good adsorption, high strength, easy forming, less resistance and long service life. It has good adsorption effect on benzene, formaldehyde, sulfur dioxide, sulfur and hydrogen compounds, ammonia and other polluting gases, and can filter PM2.5 dust and so on. It is widely used for indoor and automotive air purification, as well as for industrial and domestic water purification.