... heater, heater, mini desktop heater, mini ceramic heater 2.High thermal efficiency, warming fast & equably, no open flame PTC heater, heater, mini desktop heater, mini ceramic ... Functions and features.1). PTC heater, mini desktop heater, mini ceramic heater.2). High thermal efficiency, ... /50Hz, 500W2. Using advance semiconductor ceramic PTC heating element3. Nomal warm air4 ... heater DNQ-500 for home & for ...