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Unformatted text preview: works by having two metal plates in the filter, one negatively charged, the other positively charged. When larger molecules (like dust and dirt) pass through the filter, molecules are attracted to either one of the plates, and eventually will stick to the plates. This purifier requires no filters, but does need a quick wipe down with a cloth about once a week to keep the charged metal plates clean. Air purifiers have received a lot of flack from many different agencies, such as Consumer Reports, and even the EPA. Some filters make claims that are not substantiated by legitimate testing or evidence. Also, many people claim that some filters emit too much ozone, a molecule made up of three oxygen atoms bonded together, in a home. No matter what your stance on the filters, the fact remains that they are helping keep many homes free of dust, dirt and allergens. As technology progresses, the power and efficiency of the filters will only get better....
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- Fall '08