21x21.5x5 (20.1x21.1x5) MERV 11 TraneA(R) Aftermarket Replacement Filter Description
Why yes, this filter is capturing particles at all hours of the day and night. That's because indoor air pollution never sleeps. If those harmful indoor air contaminants like dust, pet dander, pollen, mold spores, lint, and hair do not sleep, then you need a filter that will work as long and hard as these particulates will. The 21x21.5x5 (20.1x21.1x5) MERV 11 TraneA(R) Aftermarket Replacement Filter is constantly on the lookout for airborne contaminants to capture. It's like the city of New YorkA(R) "" it never sleeps. While you and your family rests at night, this filter is up protecting you from those pollutants that wish to cause you and your family to suffer from allergies and asthma. The 21x21.5x5 (20.1x21.1x5) MERV 11 TraneA(R) Aftermarket Replacement Filter is like having your very own indoor air security team in each room in your home.
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