Tusa utilizes its proprietary surface activation process to treat uncontaminated coconut shell activated carbon, adding Tusa's unique organic ligands to produce modified ligand activated carbon. This special filter material can efficiently immobilize heavy metal ions, especially for the removal of harmful metals such as lead and mercury commonly found in drinking water, with a removal efficiency far superior to that of commercially available activated carbon. It has: - A very large adsorption capacity, resulting in a longer service life. - A higher removal rate, thereby reducing the amount of material used. - Uses activated carbon as the base, thus preserving most of the functions of activated carbon in the purification process while removing heavy metals. - Made from coconut shell activated carbon, which does not cause additional pollution and is reliable in performance. - Can be made into granules, powder, or blocks to suit various application scenarios.