RO water machine Can remove chlorine, impurities, odor, heavy metals and bacteria ... hair, sand, clay, colloid, floating substances,Pesticides, methane, heavy metal particles, harmful ion and dissolved salts, and only remains water molecule ... chemicals, unpleasant taste, floating substances as well as heavy metal particles further4. (RO) Reverse osmosis membrane Filtration accuracy: 0.0001umAbsolutely ...