I clean HEPA Filter Fit Dirt Devil Type F9 Classic, Purpose Pets 3DJ0360000 M0105 M0100 Allergy Vacuum Cleaner Filter For Dirt Devil HEPA Filter Type F9 Part numbers: F9, 3-DJ0360-000 Frequent changing of filter will increase vacuum's performance Fits these models: 0100- Dirt Devil Hand Vac, 0105- Dirt Devil Hand Vac Includes 1 filters For Dirt Devil HEPA Filter Type F9