This is a 3D model of the mask which has an original design and is intended for 3D printing.
For ease of printing, the model is divided into several parts. But there is also a whole model if you decide to do it yourself. I recommend using Blender or Meshmixer for this. I did the test printing on an Ender 3 Pro. For slicing, I usually use Cura or PrusaSlicer.
*If you have any questions or problems with these files, please contact me.