Function: The use of ultra-high pressure permeability static pressure generated by the pump, so that water molecules and mineral elements by a layer of ionic reverse osmosis membrane, and the majority of heavy metals dissolved in water, organic matter and bacteria, viruses, etc. can not be by reverse osmosis film is trapped (reverse osmosis membrane pore size is only 0.0001μ microns, and the diameter of the virus are generally 0.02-0.4μ microns in diameter are common bacteria 0.4-1μ microns).