Respirator / Breathing mask (Covid19)

grabcad

I thought it wouldn't hurt to design a 3D-printed breathing mask where the filters can easily be replaced in times of Covid19 when masks are scarce. The initially provided stabilizing ring isn't necessary in this simple version, so the mask gets along with just one printed part. Instead of the stabilization ring, more complex filter adapters can also be used - like those with outlet valves. The FreeCAD project file is included too. By adjusting the splines, the mask can be adapted to different face shapes or sizes. I don't know how strong the filter effect will be against corona viruses, but independent of that, the mask is great for protection in woodwork and other dusty environments.