Highlights This filter reduces high-allergen microparticles, features odor-reduction technology, and last up to 90 days Product Details COVID-19 guidelines may delay shipping. Thank you for your patience. DuPont High Allergen Care Air Furnace Filters (4-Pack) Air filters catch microbes and allergens circulating in your home, leaving you with cleaner, healthier air Stops pollen, pet dander, dust, smoke particles, mold spores, and ragweeds, among other allergens Oguard odor-reduction technology halts bad smells such as smoke in their tracks Anti-microbial product zaps odor causing microbes Wide variety of sizes to match many standard HVAC systems MERV rating: 11 Each lasts up to 90 days Multiple nominal and actual sizes available Product dimensions For post-purchase inquiries, please contact customer support. Sold by Groupon Goods. View the products FAQ to learn more. The Fine Print COVID-19 guidelines may delay shipping Free returns Most orders are delivered within 7 business days from the purchase date. Shipping questions? Does not ship to PO boxes/AK/HI/Puerto Rico How is the strike-through price determined? Customer Reviews4.525 ratings4.5Average of 25 ratings72%16%8%4%Sort by:Most RecentHighest RatedLowest RatedMost HelpfulTop Reviewers100% Verified ReviewsAll reviews are from people who have purchased this product.AAlicia7 ratings2 reviewsDecember 29, 2020DuPont made in the USA they seem to work well. I change them monthly because they look grey at that point. I have 1 small dog and we vacuum daily.HelpfulMMarleneTOP REVIEWERHELPFUL REVIEWER20 ratings14 reviewsDecember 29, 2020Not as good as some of them but they do what they are supposed to doHelpfulDDeborah3 ratings3 reviewsDecember 29, 2020My furnace air filters are very good. They help prevent allergens. I like the ability to have them delivered to my home. They are boxed well so they are not ruined in shipment.HelpfulRRandallTOP REVIEWERHELPFUL REVIEWER22 ratings20 reviewsDecember 27, 2020Great product at a great price and very speedy delivery. Best way to buy your filters.HelpfulTTerri3 ratings2 reviewsDecember 27, 2020Have not used yet. Will update since I have pets. To see how well it works.HelpfulCCindyTOP REVIEWER15 ratings13 reviewsDecember 26, 2020Good air filters at a good price.HelpfulCCharlesTOP REVIEWERHELPFUL REVIEWER35 ratings25 reviewsDecember 26, 2020$10.00 dollars for 3 of these filters from Home Depot all day, every day.HelpfulJJosephTOP REVIEWER10 ratings9 reviewsDecember 26, 2020GreatHelpfulSee all reviewsEarned when a user has written 5 or more reviewsWant to earn this badge? Share 3 or more photosEarned when a user has gotten 2 or more helpful votes