Dirt Devil F1 HEPA Filter will fit Dirt Devil Model 087800. Dirt Devil F1 filters It will also fits Dirt Devil 088400, 088450, 088700, 088705, 088800, 088805, 088900, 088905 vacuum cleaners .It has a very unique technology that it captures solid particles, which are not released back into the air. This filter is ideal for people who suffers from asthma or other respiratory irritations. Product Dimensions: 11.5 x 5.7 x 3.5 inches ; 4.8 ounces