"C1," a home-use water purifier, employs a fine ceramic filter, utilizing the ceramic filter technology that NGK has accumulated over many years in breweries, wineries and mineral water plants. This is the first product for the general consumer marketed under NGK's own brand name. It is the first product of its kind in the world to be capable of recycling used water purifier cartridges, and, in the high-grade model, of producing semi-sparkling water.