| http://www.w3.org/ns/prov#value | - Replace it every 6-8 months for best results. ??? Combination charcoal/HEPA/PCO filter ??? Removes airborne contaminants, including allergens, dust mites, pet dander, pollen, mold spores, germs, smoke particles and household odors ??? Filter may be cleaned with a standard household vacuum with brush attachment as needed ??? Replace every 6-8 months. ??? Includes one filter Specifications
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