Pure water machine, treatment for glass washing water, which is mainly used in reverse osmosis membrane technology. It's working principle is to exert a certain pressure on water, so that water molecules and ionic mineral elements through the reverse osmosis membrane, most of the inorganic salts (including heavy metals) , organic matter, bacteria and viruses can not pass through the RO membrane, so that the purified water and the concentrated water can not pass through the RO membrane The pore size on the reverse osmosis membrane is only 0.0001 microns.