Fanless and filterless, it can make no noise and wishes no upkeep, but you have to make sure to clean off the ionized dust that builds up around it around the wall. Alongside with elevating the pH level, a water ionizer machine also needs to take out any contaminants or https://allhealthmarket.com/product/home-care-2/oxygen-and-hydrogen-generator/hydrogen-water-generator-300ml-450ml-hydrogen-inhalation-machine-99-99-oxygen-and-hydrogen-generator-ionizer-home-care/