Filter Facts

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May 29, 2010

Get the most out of your purification system. Check the certification. Be sure your filter removes the proper impurities. Buy a filter that has been certified by NSF International or the Water Quality Association, two independent organizations that verify the claims made on such products.
Watch the calendar. Change your filter according to the manufacturer's intructions. Filters lose their effectiveness over time. A carbon filter, for example, acts like a sponge. It's able to absorb contaminants for only so long.
Hook it up. Filfters that attach to a faucet may remove slightly more contaminants than countertop models, because the water forced through them is pressurized-as opposed to water that is poured through a filter in a pitcher.

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