3M Filtrete Hoover FloorMate Allergen Vacuum Filter - 1 filter Fits vacuum models HOOVER* Floormate* SpinScrub* and Floormate* Powerbrush* (FH40000, FH40005, FH40010, FH40030, H2800, H2850, H3000 Series) Hard Floor Cleaners. 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.