N95 Face Mask Filter

Why:
At this time, the N95 masks are precious. The goal of the BaileyMask is to make 4 filters (33mm x 75mm) from each full N95 mask.

What:
It has a tight seal around the face, and a check valve system to reduce humidity inside the mask and thereby extend the usefulness of the filter. The filter can be removed and sterilized with UV and hydrogen peroxide. The filter box can be easily adjusted so air freely bypasses the filter when full protection is not needed.

Tips:
This build requires a 3D printer. STL files are included. I will add the SAT, X3D files soon.

DISCLAIMER: I am not a medical engineer. Although I have tested this for myself, I can't promise it will work for you. Please don't suffocate yourself or your friends, or expose anyone to Coronavirus.

Please be sure that you follow these basic principles:

1) The filter must be N95. Anything less won't protect you
2) The filter must fit perfectly into the filter box and seal all the way around. 33mm x 75mm
3) Th