... 4 stages.Stage 1: Sediment filter removes suspended impurities from inlet water. Stage 2: Metallic ion exchange filterThis patented high precision ... metals as lead, mercury, arsenic,cadmium, zinc, manganese, selenium, iron, chromium, aluminum, nickel and copper, as well as to ... , salmonella, etc.), parasites and microbes up to 99%.(water purifier,UF water purifier,water softener) water purifier