Patent ID: 6776824
Filing Date: 2004-08-17
Classification: A47L,A61L,B01D,Y10S

Abstract:
A hand-held vacuum cleaner comprising:a vacuum cleaner body having a handle, and housing an electric powered blower powered by a battery with a switch disposed between the battery and the blower; an intake portion releasably connected to the vacuum cleaner body such that the intake stage forms an airtight seal with the vacuum body; the vacuum cleaner having an intake opening, an exhaust portion, and a filtration system disposed therebetween to filter contaminated air drawn through the intake opening, the filtration system including: a first passive stage to filter out airborne particles above a predetermined size, an active stage including an energy source and at least one agent effective to kill ambient biological contaminants, and a second passive stage for removing odors and hazardous chemical agents, wherein the first passive stage is sandwiched between the active stage and the second passive stage to form an integral filter.