Deionization (DI) filters exchange positive hydrogen and negative hydroxyl molecules for positive and negative contaminant molecules in water. DI filtering and other processes are sometimes referred to as "water polishing."
Deionization removes dissolved particles such as salt (sodium chloride), minerals, carbon dioxide, organic contaminants, and other impurities from water. It is a purification process used in both industrial applications and potable water production for human and industrial use.
