These flexible, tear-resistant dust bags feature a multilayer filtering system that expands as you clean. The synthetic multilayer construction allows air to flow through while trapping dust and fine particles. Premium allergen filtration dust bags last twice as long as paper dust bags by ensuring a full-power suction until the bag is completely filled. Dust bags fit vacuums in the Sanitaire 600 and 800 Series, including Quiet Clean Upright Vacuum.