There are different methods of water purification: filtration, sedimentation, distillation, chemicals and biological processes. However, the only method which works in domestic conditions is filtration. Boiling water is also a method to filtrate water with many benefits. Though by boiling water you destroy all the properties and the eventual taste is horrible. There are many filters on the market of different forms, price and quality. Personally, I buy filters only from Pure Water Guide which impressed me with huge variety and affordable prices. Moreover, I bought Engdenton faucet water filter which is pretty simple to install and use even for a woman. Choose the best for you and your family.