Covid19 Mask (Geminus Dual Filter) with screw inserts

thingiverse

I loved the Geminus mask, but I hated the press-fit inserts so I designed a threaded ring set to make it better. I also squared and enlarged the strap holes so that I could use rubber swim goggles straps which fit perfectly. Check the fit of the outer ring from the outside of the mask. It should be a tight fit and use super glue gel or epoxy liberally to seal it in place. The inner ring should screw in from the inside where it belongs. The logos indentation was a personal preference that can easily be removed with Tinkercad if needed. I printed the masks with tree supports for overhangs of more than 60 degrees which reduced any leftover material around the filter holes. We heated the nose areas to shape that area to our specific face shape and size, making it comfortable to wear. With proper straps and the shaping, my glasses don't fog up anymore because I solved the problem. Assume that this design is for show only and not approved by anyone who approves masks for use in medical situations such as the CDC or WHO.