X6 Half-Face Respirators

Update:01 June 2020: TPU version published: https://www.thingiverse.com/thing:4400415

Update:07 April 2020: I got a bugs in "120_MainBody.stl", please don't print it.
I already fixed and reuploaded, file name is "120_MainBody.stl_v2".


Following the COVID-19 epidemic worldwide, there is very high demand and tight supply of surgical masks thus cause the high cost all over the world. To combat the shortage of surgical masks amid the COVID-19 pandemic, searching for alternative is demanding.

To alleviate the problem, I design a 3D printing respirator, which uses one-sixth surgical mask as the filter membrane

As interim measures, 3 sizes have been uploaded, namely X6_100, X6_110 and X6_120, you may download it according to your face size.

Steps of how to measure size of your face and produce the respirator are stated as follows.
1. Download Face_scale.xlsx first
2. At the field of "Your face length" in the excel worksheet, enter the length from your eyes to the lower l