I just wrote a MakerBot user in New Jersey and offered to help print some breathing masks, after reading an article. The young woman is an engineering student getting her masters at Rutgers, and she's trying to finalize her mask designs and get other "makers" to pitch in. If I hear back that we Cheetah users can be useful, I hope we'll do so. Should I hear back, I'll post further. If her design can be used freely and globally, I'll post the files here or a link she provides.