A warm air dryer uses a high-temperature airflow to flow over the surface of clothes that need to be dried, heating the clothes and taking away the evaporated moisture, allowing the clothes to dry quickly. The commonly used heating methods include electric wire heating and semiconductor (PTC) heating. The heater made of semiconductor will automatically reduce power in the environment (inside or around the dryer), save energy, and also control the highest temperature to protect clothing, ensuring safety and reliability. It is not limited by weather conditions, and some newly designed clothes dryers are easy to disassemble, convenient, and space saving. Most well-designed clothes dryers can provide warmth and are versatile, bringing a lot of convenience to families. They are effective equipment for reducing large sun drying areas and providing drying at any time.