The Medipure Premium Filter Cone contains a layer of non-woven, microfiber media that reduces dust mites, pollen, common bacteria, pet dander, odors and other allergens. The Majestic Medipure Premium Filter Cone includes: (1) Medipure Premium Filter Cone How often to change your filters: Change your Medipure filter cone every 6 months. For best experience with odor control (homes with pets or smokers) you will want to change the Medipure filter every 3 months. Place order below or call (877) 746-6680.