Water filter can wipe off Residual chlorine, impurities, bacteria, Heavy metals, bad odour, and keep good minerals for ... . KDF: Remove heavy metal; resist the regeneration of the bacteria,kill the organism.3. Active carbon: Eliminate the residual chlorine ... ) 3) Power filtration wipes off: a) Residual chlorine, impurities, bacteria, algae, pesticides, chemical poisons b) Heavy metals, such as lead ...