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Amazon.com: ALORAIR Air Scrubber with 3 Stage Filtration, Stackable Negative Air Machine for Industrial and Commercial Use, Heavy Duty Air Cleaner with MERV-10 Filter, HEPA/Activated carbon Filter, Green : Home & Kitchen
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18x24x4 MERV 10 AC & Furnace 4" Depth Air Filters. Box of 4. Actual Size: 17-1/2 x 23-1/2 x 3-3/4 - - Amazon.com
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