The warm air dryer uses a high temperature airflow to flow through the surface of the clothes to be dried, heat the clothes, and take away the evaporated water to make the clothes dry quickly. The commonly used heating methods include electric heating wire heating, semiconductor (PTC) heating, and semiconductor-made heaters, which automatically reduce power in the environment (in or around the dryer), and also control the maximum temperature protection of clothing while saving energy. Safe and reliable. It is not subject to weather conditions, and some of the newly designed dryers are easy to disassemble, convenient and space-saving. Most of the well-designed dryers can be used for heating, and a multi-purpose machine can bring a lot of convenience to the family. It is an effective device for reducing large-area drying and providing drying at any time.