... membrane. Then through mineralization treating, living ozone sterilizing, 24hours UV sterilizing. Sand, corrosion, heavy metal, bacteria, residual chlorine ... completely.5.24 hour uninterrupted uv sterilization ,guarantee the water quality. 6. Filling conpartment has the light , so the guest ... any impurities in the water directly. 7. The light of lighted marquee and filling compartment can be controlled ...