15x20x1 Allergen Filter, 4 Pack Review

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(More customer reviews)These filters strike a good balance between cost and performance. I've been using them for years. They protect your respiratory tract and your HVAC equipment. People with extreme sensitivity should consider something like the Filtrete "Ultra Allergen" line, but the rest of us will be fine with this model. Always, always always, change them at least every three months. Check it monthly the first few changes; it's pretty easy to tell if you need to change it more frequently.
However, these exact filters (same manufacturer's part number) are available at my local big-box home improvement store for 33% less than this price. And that their one-off price vs. Amazon's 4-pack price. I'm surprised and disappointed, since Amazon's usually able to beat out the clunky supply chains of the brick-and-mortar-o-saurs.


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Electrostatically charged Filtrete fibers work like magnets to remove 92% of dust, pollen, and mold. They effectively remove particles as small as 3 microns of smoke and pet dander making them 20 times more effective than ordinary furnace/air conditioner filters. Each provides 3 months of protection under normal conditions. MERV 11. Red label. No. 9807DC-6: 10 x 20 x 1 No. 9810DC-6: 12 x 12 x 1 No. 9819DC-6: 12 x 20 x 1 No. 9820DC-6: 12 x 24 x 1 No. 9811DC-6: 14 x 14 x 1 No. 9805DC-6: 14 x 20 x 1 No. 9804DC-6: 14 x 25 x 1 No. 9823DC-6: 14 x 24 x 1 No. 9824DC-6: 14 x 30 x 1 No. 9806DC-6: 15 x 20 x 1 No. 9816DC-6: 16 x 16 x 1 No. 9800DC-6: 16 x 20 x 1 No. 9825DC-6: 16 x 24 x 1 No. 9801DC-6: 16 x 25 x 1 No. 9817DC-6: 18 x 18 x 1 No. 9821DC-6: 18 x 24 x 1 No. 9802DC-6: 20 x 20 x 1 No. 9803DC-6: 20 x 25 x 1 No. 9822DC-6: 20 x 30 x 1 No. 9812DC-6: 24 x 24 x 1 No. 9815DC-6: 25 x 25 x 1

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