Passive filters wait around for pollution. YD-705 by Yuanda with PCO filter duplicates the power of sunlight and thunderstorms to bring the solution to the pollution. You’ll have three ways to improve your indoor environment: Normal Mode uses our exclusive PCO technology to produce safe, low-level, natural oxidizers and superoxide ions for basic, everyday applications. High Mode adds the power of activated oxygen for more coverage and increased elimination of smoke, odor, and surface contaminants. The sani+booster Mode increases the maximum output of activated oxygen for incredible effectiveness in unoccupied areas. OEM:Brand Logo and Packing Box are available MAIN FEATURES: Five airflow speed fan LCD display Washable purification plate Eliminates smoke, odor and bacteria Washable and permanent HEPA Adjustable purifier control Low Energy Cost PCO filter included HEPA filter included to remove dust with high efficiency Low Maintenance required Ozone output 360 mg/hr+ (Away Mode)Technology Needlepoint ionizationRF pulse ionizationMICA ozone generator technologyPermanent HEPA filterPCO technologyLCD display control panelAdjustable timer setting Sani booster modeElectric feature 110V-120V/50-60Hz 45W Ozone Density <0.05mg/m3 (occupied condition), 1.5mg/m3 (unoccupied)Fan speed Average 2.5m/s at the front grillIon generation 2 million/cubic cmCoverage Up to 3500ft2