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Home Water Treatment Devices
Information for consumers about selecting home water purification and filtration systems. Describes treatment technologies (such as adsorption, softeners, ultraviolet treatment, reverse osmosis, and distillers), types of devices (point-of-entry and point-of-use), and drinking water treatment and homeland security. Includes a link to a product database and to related websites. From NSF, a nonprofit organization that develops consumer safety standards.
http://nsf.com/consumer/drinking_water/dw_treatment.asp?program=WaterTre#technologies

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