Multi Stage Disinfecting Air Cleaner

Abstract

A portable air filtration apparatus capable of rapid and efficient room air turnover and recirculation of filtered and decontaminated air with eradication of both microorganisms and biological agents. The invention relates to a compact device that can be used in ultra-clean air purification using a multi stage electrostatic precipitation and air filtration with disinfection and eradication of both microorganisms and biological agents by the application of ultraviolet light radiation. It can be used in any application where space, lower cost or ultra-fine particulate filtering is needed; such as in clean rooms and surgical suites. The device is extremely efficient for purifying contaminated air from entrained dust and organic substances without using chemicals and physical filters, and it is hygienic and fireproof. The device including its multi stage electrostatic precipitator with the filter, connecting, releasing tubes and the fan is easy to clean and can be portable.

I claim: 
     
         1 . A method of purifying air from a room comprising:
 drawing the air from a room and passing it through a corona discharge region, the corona discharge region electrically powered by a first high voltage power supply, then:   drawing the air through an linear electric field region, the linear electric field region having at least one porous electrode, the linear electric field region powered by a second high voltage power supply; wherein the linear electric field region comprises outer and inner concentric conductive cylinders; the outer conductive cylinder being solid, and the inner conductive cylinder being porous, wherein the outer and inner conductive cylinders form electrodes configured to produce a linear electric field between them, then:   passing the air through the porous electrode, then;   drawing the air through an ultra-violet (UV) light beam, then;   expelling the air back into the room;   
     
     
         2 . The method of  claim 1  wherein the corona discharge region is contained in a high voltage corona discharge chamber. 
     
     
         3 . The method of  claim 1 , wherein said room air is passed through a charcoal filter prior to being expelled back into the room. 
     
     
         4 . A method of purifying air from a room comprising:
 drawing the air from a room and passing it through a corona discharge region, the corona discharge region electrically powered by a first high voltage power supply;   drawing the air through an linear electric field region, the linear electric field region having at least one porous electrode, the linear electric field region powered by a second high voltage power supply;   passing the air through the porous electrode;   drawing the air through an ultra-violet (UV) light beam,
 expelling the air back into the room. 
   
     
     
         5 . The method of  claim 4  wherein the corona discharge region is contained in a high voltage corona discharge chamber. 
     
     
         6 . The method of  claim 4 , wherein said room air is passed through a charcoal filter prior to being expelled back into the room.