Simple DIY mask with flexible filter media options. Three sizes available; small, medium and large. Use string, elastic cord, rubber bands, or other options to secure to head. anchors around the frame are very handy to wrap string around for a snug fit. Mask frame will conform under tension, or can be heated and formed to the face.

Ultimate goal is a low cost, fast printing, simple mask that could be used and discarded.
"Make everything as simple as possible, but not simpler." Einstein

This is a very fast print at 14 minutes for the large sizes. Two larges, three mediums or three smalls can fit on a standard 200mm X 200mm build plate.

PLA and PETG are both acceptable materials to print with.

Note: This mask is not as effective as a N95 HEPA, MERV 16, etc. but this is better than nothing.

****All Solidworks, Step, and DXF files stored here : https://grabcad.com/library/community-face-mask-frame-1

Check out this link for more information about Best Materials for Making DIY Masks
https://smartairfilters.com/en/blog/best-materials-make-diy-face-mask-virus/?fbclid=IwAR28ZtZP3utwGHE1hmqXdoeqxgHMpWmtT5lhNYXB1I33hURVa_j-pnDd7jo

Please provide feedback and pictures

Update:

• 3/22/2020 FACE MASK REV2 uploaded
  1) Now is three sizes ( Small Medium and Large)
  2) Thinner Frame compared to REV1. Frames now contour better to user's face
  3) Larger holes to accommodate elastic cord.
  4) Solidworks Models are more parametric. Should Allow for better derivatives from community.
• 3/22/2020 FACE MASK Filter template REV2 uploaded. All Three cutting pattern are in one tool
• 3/23/2020 Mask in the news https://tribune.com.pk/story/2181993/1-pakistani-volunteers-3d-print-ventilators-join-war-covid-19/
• 3/25/2020 Tech Port Video https://www.youtube.com/watch?v=eLVmrvRpNIk
  3/26/2020 Per Request DXF & STEP files for Rev2 masks uploaded
  4/4/2020 To reduce update delays all Solidworks, Step, and DXF are located here https://grabcad.com/library/diy-face-mask-1
  4/6/2020 Naval Air Systems Command released a Technical Data Package. https://www.navair.navy.mil/am
  4/9/2020 U.S. Department of Health and Human Services tested and approved this design. https://3dprint.nih.gov/discover/3dpx-013512
  *4/13/2020 Medium male/female forming tool stl added