UVC PHOTO CATALYTIC AIR PURIFIER, VOLT:120, CATALYTIC AIR PURIFIER SYSTEM IS A WHOLE HOUSE UV LIGHT SYSTEM, CREATES A LOW PRESSURE AREA AROUND THE HEIGHT OUTPUT 50 WATT UVS LAMP ESTABLISHING A VENTURI EFFECT, THE VENTURI SIGNIFICANTLY INCREASES THE TIME EXPOSURE OF AIRBORNE MICROORGANISMS IN A BATH OF STERILIZING GERMICIDAL ULTRAVIOLET LIGHT, WEIGHT:5 LBS 8 OZ, IN MFG. BOX, MADE IN USA