Replacement vacuum cleaner filter. Filtrete vacuum filters help capture dust mites, grass, and ragweed pollen. Fits models: Bissell Lift-Off (3750, 6595, and 6801 series), Lift-Off Revolution (3760 series), Momentum (3910 and 6390 series), Pet Hair Eraser (3920 series) PowerTrak Cyclonic (6390 series), and Total Floors Velocity (3990 and 6393 series).