This pureit water purifier is a very good purifier compaired to others. Its an old brand but its worth your money. One gets pure water from it, crystel clear water. Its a worth buy product. Its battery lasts for 5-6 months even if used continuously and constantly. When compaired to other products of pureit it an old one but oys a worth buy and must buy product for your home as its easy to handle, easy to clean and easy yo store. I want to give this product of pureit a 4.5 rating .Best buy , must buy