This product uses purified water(like distilled water) or bottled Mineral water. This machine have amazing function, it makes up-grade your drinking water. 1. Make Hexagonal water 2. Oxygen occurrence in the water 3. Minerals occurrence in the water 4. Water alkalinization 5. Make micro-clustered water 6. Make strong water structure 7. Exclusion Chlorine in the tap water 8. Adds nerative ions in the water 9. Balances ORP(Oxidation Reduction Potential) If you want more detail, please visit our Web site.