Electric fan heater, with PTC heating elemnt, Twin Electrostatic washable dust collector, Remote control, ... /smoke as small as 0.03 micronsMaintainencewash electrostatic dust collector with water, or in dishwasherQuiet45dBTimer1,2,4,8 hoursRemote controlYesUser pannelLED ... :Shenzhen Country of origin: P.R.China Electrostatic air purifier with heating function