What's the difference between a water purifier and a water ionizer?

The water purifier is usually a basic device for home use that filters chemicals and impurities. Purifiers are unable to change the pH values, ORP values or the structure of water molecules. A water ionizer uses electrolysis to alter water pH and ORP values and molecular cluster structures of the water. It conditions the water chemistry for the user. The pH value of the output can be selected for different uses; drinking, cooking, washing, healing, etc.