Avoid ear pain caused by prolonged wearing of masks
It is recommended to use nylon filament and print with a thickness of 0.6mm
More Printing Photos:
http://mingshiuan.blogspot.com/2020/03/202003060313-3d1-2-123d-design.html?m=0#Nylon
![](https://makerworld.bblmw.com/makerworld/draft/98148/2023-10-17_446wh9g6z1lk.jpg?image_process=format,webp)
mask decompression belt
![](https://makerworld.bblmw.com/makerworld/draft/98148/2023-10-17_f6dskge8c38s.jpg?image_process=format,webp)
![](https://makerworld.bblmw.com/makerworld/draft/98148/2023-10-17_qic2anolvnuv.jpg?image_process=format,webp)