A water distiller is the single most effective way to protect against the full range of possible contaminants that can be found in water. This makes them a great source of water for applications pertaining to your health, as well as for products or appliances that use water such as dental equipment, vaporizers, humidifiers, CPAP machines, lead-acid batteries, engine cooling systems, steam irons, waterfalls, fish aquariums, and many more. To keep your Pure Water Distiller working properly, you need to change the carbon postfilter every 3 months and clean the boiling chamber as needed with a quality descaler. Both of these items are listed below.