
They are designed for use with residential and light commercial forced-air heating and/or cooling systems and can be installed in a vertical or horizontal section of a typical return air duct system. The electronic components of the unit convert the 120 VAC of the power supply to 7200 VDC which imparts an electrical charge to airborne particles such as smoke, bacteria, pollen, and dust. These charged particles are then attracted by the dust-collecting media, thus purifying the airstream. The e