Air purifiers come in many shapes and sizes, and some pack more power than others. A small bedroom requires less filtering power than a large living room. In order to gauge the performance of a given purifier, pay close attention to the Clean Air Delivery Rate, or CADR. This measurement notifies consumers of the amount of air that purifier can filter per minute.
As a general guideline, you should select the best air purifiers by plugging your room’s square footage into a helpful equation. Simply multiply it by 0.75, and the result will show you the optimal CADR rating. It’s obviously better to have to much power than not enough. In any case, a home air purifier will help to rid the internal environment of contaminants such as pollen, dust and cigarette smoke.
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