We use the globally advanced electrostatic technologies, combined with our patented plate electric fields. The cooking fume and oil mist from restaurants or hotel kitchens can most efficiently achieve filtration and purification. Air is drawn by the motor/blower through a filter bank which traps large dust particles. The remaining particles, some as small as 0.01 microns pass into a strong electrical field (ionizing section) where the particulate receives an electrical charge.