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Some of the cheaper systems on the market ( PUR and Brita, for example ) only include single stage granular activated carbon, so they will not remove many of the cancer - causing chemicals that are present. Read product performance data before you buy. You may think you are getting a good deal, when in fact you are not fully protecting your health.

In terms of taste, healthfulness and affordability, selective purification cannot be beat. It is naturally occurring minerals that give water a fresh taste. When selective filters identify traces of lead and other metals, they are exchanged for healthy potassium and sodium ions, through a process called " ion exchange ".

You can buy a selective system for the kitchen tap for around a hundred dollars. Effective systems that include reverse osmosis filtration cost closer to " eight " hundred dollars. What sounds like the best buy, to you?