PI Alkaline Energy Anti Oxidant Cup Converts water to alkaline Filter - purifies water. Water from this cup is full of negative ions which can carry more oxygen through the body, helps activate cells and enhance water quality. The specific negative ions technology of the cup can deliver more active hydrogen for the body and eliminate excess free radicals. It neutralizes excess acid in the body for effective mechanism and Prevents cancerous cells in your body since they cannot live in an alkaline medium.