The household RO Pure Water Equipment is a miniaturized water filtration station. It is simple to connect water dispenser with drinking water pipeline directly, connect the tee-joint outlet of water dispenser with pressure tank, and connect rear active carbon with drinking water gooseneck tap. It consists of automatic water feeding system, 5μm PPF melt blowing PP fine filter element, CTO active carbon adsorbent filter and 5μm PPF fine filter + UDF coco shell particle active carbon adsorbent rear filter. The household RO water filtration unit is able to detect running water pressure and make judgment if there is water at the inlet. The water pump is protected as it runs only with water.