The working theory of our water ionizer is as follow: filtering tap water through three pre-filters and then one in-build activated fiber carbon filter at last water is electrolyzed by electrolysis chamber. Water will divided into alkaline water, purified water and acid water via ceramic membrane. Alkaline water is suitable to drink and cook and something like that, purified water take medicine and make tea or coffee, acid water sterilize, disinfect and use in cosmetology......