The software used in the production is blender4.0. This mask model is a solid model that can be subdivided. The rendering image opens the subdivision, and the file retains the subdivision modifier. The model has UV unfolded, see the screenshot for details. The output has obj, fbx and other format files.The model size is 1:1 real-life size, with a specific size of 150*74.4*149mm, and the model wall is about 3mm behind. The model output has a subdivided STL format file, but it has not been tested for 3D printing.

You can get more information from the preview pic.If any question please write to me.