Abstract: A Portable Automated Water Purifier and Method is disclosed. Also disclosed is a preferred purifier that accepts supply water from a common water spigot and purifies it via a reverse osmosis (or other preferred filtration) process. The purified water is dispensed into a vessel until such time as a non-intrusive level detector indicates that the vessel is fill. The preferred level detector is able to detect the amount of water in the vessel from outside of the vessel, and without the use of a weight scale. The device might detect when the vessel is removed from it's dispensing location, such that the purifier dispensing will be stopped. The preferred purifier includes guides to steady the vessel as it sits in the dispensing location. In another preferred embodiment, a means for filling a beverage preparing device, such as an automatic coffee maker, is included.