Introduction: Small ovens are widely used in the pharmaceutical, food, chemical and other industries to heat and dry or dehumidify materials. The working principle of this machine is to use steam or electric heater to heat the air, and then the heated air will circulate and dry the material. The temperature difference throughout the box is small, and the drying is even. During the drying process, fresh air is constantly added and hot and humid air is discharged. Therefore, proper humidity is maintained in the box, so that the drying process is always in an ideal state. Equipped with low noise and high temperature resistant axial flow fan and automatic temperature control system, the entire circulation system is fully enclosed.