Replacement Bag Provides A Standard Level Of Filtration For A Cost-Efficient Way To Keep Rooms Free From Dirt, Dust And Debris. Easy-To-Install Design Goes On And Removes Quickly To Simply Replace Filled Bags. Disposable Material Allows You To Conveniently Discard Filled Bags For Time-Saving Replacement. Filtration Bag Is Designed For Hoover Hushtone Vacuum Cleaners (Sold Separately).