Domestic water purifier without the need for a storage vessel has as its main filter a nanofiltration membrane of specified pore size

摘要

A domestic water purifier with a nanofiltration membrane but without a storage vessel includes a pre-treatment filter (4), a pre-treatment carbon filter (6), a main filter (7), a valve (8) preventing backflow and a post-treatment filter (9) and is such that the purified water exits directly via a valve (10) without storage, the novel feature being that a nanofiltration membrane of pore size 0.1-10 nm serves as the main filter (7).