Amazon.com: 3 pack 20x25 Dynamic Air Cleaner Replacement Compatible Filter (Actual Filter Size is 18.5 x 22.5) By Fast-Shipped-Filters : Home & Kitchen
Amazon.com: 3 Pack 16x25 Dynamic Air Cleaner Replacement Compatible Filter White (Actual filter size 14.5 x 22.5) Fast-Shipped-Filters : Home & Kitchen
Amazon.com: 16 x 25 x 1 Genuine Dynamic Air Cleaner with Polarized Media # 1P1625C24 : Home & Kitchen
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Dynamic Air Cleaner 12-Pack Replacement Filters - GetTheSmokeOut.com