Ozonators are suitable for home use for whole-house removal of iron, manganese, and other staining minerals. These are also used to treat drinking water. It provides ozone that oxidizes five categories of water pollutants such as pathogens, toxic minerals and metals, toxic organic compounds, toxic inorganic compounds, and radioactive substances and renders them harmless. It requires electricity but only a minimal amount. Ozonators themselves have no components requiring periodic replacement and, as with distillation, there is no reduction in their performance over time.