[FAST DRYING WITH FAN] SUNLU 3D printer filament dry box can help you solve the problem of stringing, clogging and poor adhesion caused by wet filament.Upgraded filament dryer adds a fan design,speeding up the discharge of excess water from 3D printer filaments and reducing the impact of wet weather on 3D filament printing. [VISUAL DISPLAY] SUNLU dry box can accurately detect and display the temperature,time,humidity in the 2 inch LCD screen.Hold the left button to change the dry time, press the right button to change the temperature setting.