Personally, I think it is useful, from 2014 onwards with a water purifier, until now are convinced that the water purifier is real to play a role, and not a lot of people's pay IQ tax. If a little economy allows, are recommended to buy a home, especially with the elderly and children's families.
While its principle seems simple, that is, the water will be a re-filtering, but in fact it is to play a role. The main manifestation of our quoted tap water is through chlorine, although it can be disinfected and sterilized, but can not remove other pollution. Since the use of it, my family has never ordered a barrel of water, invariably saving a lot of money.
Not only does it save money, but bottled and barrel-loaded water lacks trace elements, and long-term consumption does not meet the body's needs. Based on these factors, it is really necessary. Because it can almost solve these problems, especially the cartridge can be very good filtration of tap water, become can meet the standards of direct drinking water.
So, it is recommended to buy one especially for families with children. But to add, its cartridge can not not change, but to be replaced often.