WATER FILTERS: A home water filter is the most affordable and effective way of removing fluoride from your tap water. However, most water filters will not effectively remove fluoride. For instance, Brita filters will NOT remove fluoride. The two types of filters which will reliably remove fluoride are reverse-osmosis filters and Synthetic Aluminium Oxide. Thus, if you are looking for a filter to remove fluoride, make sure it uses "reverse-osmosis" or "Synthetic Aluminium Oxide"technology.