Patent ID: 7640623

Claim:
A vacuum cleaner, comprising: a suction device that provides suction force; a suction nozzle that draws in particle laden air using the suction force provided by the suction device; a dust collecting box that receives the particle laden air drawn in by the suction nozzle; an upper cover having an opening at a central portion thereof, when the upper cover selectively opens and closes an upper portion of the dust collecting box; and a filter assembly that is removably fastened to an edge of the opening in the upper cover, wherein the filter assembly comprises a projection piece that extends outward from an upper portion thereof, and the upper cover includes a lever that selectively engages and disengages the projection piece so as to couple and decouple the filter assembly and the upper cover, and wherein the filter assembly is configured to be inserted into the dust collecting box from a space above the upper cover through the opening in the upper cover, and to be withdrawn from the dust collecting box into the space above the upper cover through the opening in the upper cover.