April 9, 2020
Description
I decreased the shell thickness which allows 100% infill while decreasing print time and material used.
I recommend using PETG to increase flexibility of the finished mask, PLA should work fine as well. This can still be formed in the same manner (heat gun, hot water, etc) as the original.
This uses the original filter holder found here: https://www.thingiverse.com/thing:4239236/files
License:
Creative Commons - Attribution - Non-Commercial - Share Alike