Instant Heat, Rapid Heating: This desktop heater adopts electric heating wire heating technology, combined with double-sided air intake and high-efficiency fan, which can heat up faster. Circulating Heating, Heating The Whole House: The double-sided air intake system of this small household heater cooperates with a high-efficiency fan to help the heater better deliver warm air to all parts of the house. Safety and Energy Saving: This highly designed small antler heater, PTC ceramic, double-sided air intake, fan circulation system helps to accelerate heat energy conversion, close to zero energy loss, faster heating and more energy saving. Intelligent Constant Temperature, Not Dry: This heater is also equipped with an intelligent constant temperature system. It will automatically heat up when it is lower than the set temperature; when it is higher than the set temperature range. Multiple Safety protection systems:This office heater is equipped with an overheating protection system,when it is running,the overheating protection design will automatically shut down the device to prevent severe overheating and reduce its losses