ZuvoWater uses nature's own cleaning processes for great-tasting water. The ZuvoWater purator uses a patented five-step process to product clean, healthy, great tasting water...just the way nature intended. The first step is ozonation as the purator mixes ozone with incoming tap water to treat taste and odor contaminants and improve taste with the chlorine's chemical residue. The second step is high intensity ultraviolet light floods the ozone saturated water just like the solar energy that cleans water in the upper atmosphere. The third step combines UV and ozone in a patented process known as photo-oxidation which releases powerful oxidizers to further treat the water. The fourth step is filtration with lead removal occurs by passing the water through a Class 1 Particulate Reduction Filter, reducing chlorine taste and odor, lead and tiny particulates. The fifth and final step is post-filtration UV when the filtered water is again exposed to high-intensity UV light as it leaves the ZuvoWater Purator, ensuring that you get clean, healthy, great tasting water.