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What is a MERV, MPR, or FPR Rating for Air Conditioner, Furnace Filters?

Posted by Richard Farkas on 2/20/2014 to Air Quality and Air Purification
What is a MERV, MPR, or FPR Rating for AC and Furnace Filters?

At we often get calls from people looking to replace the filters on their air conditioners and furnaces and who wonder about the ratings they see on them. These ratings are especially important as they help determine the air quality in your home, when it’s sealed up either during the winter or the hot days of summer.
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