3M Filtrete Hoover Self-Propelled WindTunnel Pad & 06 Allergen Vacuum Filter Fits vacuum models HOOVER* Self-Propelled WindTunnel* (U57009RM, U5720950, U5720960, U5725900, U5725960, U5750906, U5750911, U5752900, U5753900, U5753950, U5753960, U5753980, U5760900, U5760910, U5768900, U5786900, U6471900, U66009RM, U6607900, U6616900, U6617960, U6618900, U6630900, U6632900, U6634900, U6637900, U6637960, UH40020, UH40065, UH40115CA, UH40125, UH60000) Uprights. Allergen filters help trap household dust. Vacuum Filters should be replaced every 30 to 60 days for optimium performance. All vacuum brand and model names are registered trademarks of vacuum manufacturers.