The system has five-level filtration system that can effectively remove more than 98% of dissoluble salts and more than 99% of microorganisms, micro-impurity and organic matter from water, The analysis and testing center would inspect the water quality at each sampling point regularly of the ultra-pure water system, to maintain the electrical conductivity at 0.07us/cm, and maintain the PH from 5.5 to 8.5. so that the quality of production water can reach the standard of pharmaceutical available water.