AIR FILTRATION DEVICE FOR REDUCING AIRBORNE PARTICULATE MATTER IN ENCLOSURES

摘要

An air filtration system according to the present invention includes an enclosure having a floor section, a top section and an opening. A ventilation subsystem within the enclosure includes an air duct having an air intake and an exhaust vent. First and second electrode arrays are positioned with in the air duct so that the first array is located between the air intake and the second array and the second array is located between the exhaust vent and the first array. A voltage regulator is electrically coupled to the first and second electrode arrays to apply a voltage differential between the electrode arrays that creates an air flow within the air duct drawing air into the air intake and out of the exhaust vent. Airborne particulate matter carried through the air duct collects on the second electrode array. The exhaust vent is positioned over the opening to the enclosure so that the exhaust air traverses the opening to create an air curtain barrier that at least partially prevents airborne particulate matter from escaping the interior of the enclosure. Furthermore, air that exits the exhaust vent is eventually recirculated into the air intake to minimize the concentration of airborne particulate matter.