The 3-layer non-woven fabric allows for approximately 99.9% of fine household dust with over 0.5 μm such as dust mites droppings, death, and pollen to be kept clean. Thicker filter reduces clogging and maintains suction Deodorizing and antibacterial treatment for hygienic use. ■ "Loss Pack" about 99.9% of beer house dust at least 0.5μm. ■ High dust collection ■ Deodorizing and antibacterial processing ■ Includes shutter to prevent waste spill