Feature: The shell is made of PP material, with built-in professional PTC ceramic heating elements and a 3600-rpm silent fan Efficient heating, automatic constant temperature and no oxygen consumption, instant heating, energy saving and environmental protection- There are also heat dissipation holes on the back, no radiation, no open flame, and it is an ideal small electrical appliance for home and office. working principle: The motor is used to drive the fan blades to rotate to generate air circulation, and the cold air passes through the electric heating element of the heating body to form heat exchange to achieve the purpose of heating. It is equipped with a temperature limiter inside, and when the tuyere is blocked by the fan, the power can be cut off by itself. Precautions for the use of heaters: 1. Do not hang clothes directly on the heater Electric heaters without clothes drying racks, never cover the heater with clothes. In this way, on the one hand, it can avoid burning the clothes, and on the other hand, it can also prevent the pressure of the heat transfer oil inside the heater shell from rising, causing the leakage of the hot oil and the bursting of the shell. 2. Pay attention to waterproof when using in the bathroom Even waterproof heaters, do not get too close to the bathtub, washbasin or shower, and try to avoid spraying water directly on the bathroom heater when bathing. The bathroom heater should never be placed directly under the power outlet, because the upward hot air released by the heater can easily burn the outlet. 3, long-term use should pay attention to moisturizing the skin When you have long-term close contact with electric heaters in winter, you must pay special attention to hydrating and moisturizing the skin, and usually drink more water.