Lennox Air Cleaner and Humidifier Filters Secure online ordering, and to-your-door delivery - we make it easy and convenient when you buy your genuine replacement Lennox filter from FilterSolution.com. We keep a large supply of all the Lennox replacement filter products, so there is no delay in getting your order to you quickly.  Click on a category picture below for either Lennox humidifier or Lennox air cleaner filters. Prefer offline ordering? Fax or mail your order to us! Download our printable order form. Or, call us toll free at 1-866-385-2098. Lennox Media Filters Lennox Humidifier Filters	See Our 'Tribute to the Troops' Flash Video