The water purifier cleans the water without any problems. After purification, I notice some brownish residue left in the machine, which makes me think it’s effectively removing impurities. Since I live in a hard water area, white mineral deposits remain inside the machine after purification, so it needs to be cleaned. Cleaning is easy, and it even comes with acid for maintenance, along with instructions on how to use it. The noise is a bit loud, but I guess that’s to be expected.