The copper powder sintered filter element and the sintered copper filter element are made of various powder particles through high temperature firing. When the temperature is heated to a temperature lower than the melting point of the main component, a physical reaction of bonding between the powder particles occurs. The required shape size and pore size of the cartridge filter are formed in the mold. Its main functions are generally: filtration, noise reduction, flame retardant and flameproof, dust removal, etc.