The Water Machine Black carbon filters. This powerful system purifies both treated water and untreated raw water from such sources as remote lakes, streams, stagnant ponds and water supplies in foreign countries, where regulations may be substandard at best. These versatile filters remove viruses, pathogenic bacteria, cysts and parasites and extracts harmful chemicals such as herbicides, pesticides, VOCs, detergents, organic solvents, cloudiness, trihalomethanes, silt, sediment, heavy metals, chlorine, fluoride, foul tastes and odors, yet they leave in the healthful and beneficial minerals that your body needs.