H2O 4 X Ion Distilled Water Filtration System is easy to use -- effectively removing calcium, manganese and other contaminates from tap water -- to create instant distilled water for use in CPAP machine humidifiers. It is ideal for use at home and when traveling. Each pack comes complete with the H2O 4 CPAP Mini EZ Distilled Water Filtration System chamber, the chamber base, and one filter.
