If you have the kind of furnace that for some reason cannot take a more permanent kind furnace filter, then these 3M Filtrete Allergen Reduction Furnace Filters at least do you the courtesy of lasting 3 months – and money saving packages for a year’s supply can save you up to $20. Starting at $54.95 for a four pack. By the way, if you need a new central standard furnace filter, go for the Blueair Furnace Filter System at $199.95 – our preliminary results with it have been excellent and they are giving away two free bonus filters until January 31st!.
Need more details? See ratings, a complete review and current prices for 3M Furnace Filters at AllergyBuyersClub. Also see the complete selection of other furnace filters.