1) NSF certified product (NO.42, NO.53) 2) Acquired WQA Gold Seal 3) Antibacterial function, including silver that inhibits bacterial growth 4) Removal of chlorine, asbestos fibers, cysts, turbidity, iron oxide, iron sulfide, manganese, etc. 5) Seoul Dogok-dong Rexle Apartment, Banpo 2 Samsung Raemian installation model