TYgo Portable Alkalizer Bio-ceramic filter reduces impurities - chlorine, heavy metals, insecticides and other impurities Eliminates E.Coli, B. Subtilis, S. Aurene Quickly re-mineralizes tap water with alkaline mineral cartridge Over 1,300 refills per filter with no electricity or tap required Creates water with an Oxygen Reduction Potential of -250 (High Antioxidant)!