Filament dry box

I have made a lot of modifications to this filament dry box to make it more practical and airtight! It can maintain the lowest humidity for a long time! The lowest possible humidity can greatly improve the printing quality of materials such as PLA, PA, and ABS! After testing, it can maintain a low humidity environment for at least 1. 5 months. After the expiration date, you only need to dry the drying beads again to maintain their original performance. If you have any questions or su