Makers mask adapter and exhaust valve
thingiverse
I wanted to enhance this brilliant design: https://www.youtube.com/redirect?event=video_description&v=77PgC3kMrFs&redir_token=yM1QSX3HjR1Z1r79ZsxhX6MtvNt8MTU4NzQ5MTk5NEAxNTg3NDA1NTk0&q=https%3A%2F%2Fgrabcad.com%2Flibrary%2Fbreathing-mask-with-screw-in-filters-version-2-1 So I simply added a hole at the bottom and created a simple valve using a disk cut into two gloves. I also added an adapter for this great intake fitting: https://www.thingiverse.com/thing:4256244 Essentially, this is a remix of the mask on one side and intakes from another! The result is a fully functional mask that's easy to breathe with almost no leakage (even without rubber or silicone). With an exhaust valve, breathing becomes effortless; moisture escapes almost entirely through the valve. Orientation holes allow expelling air onto your chest to prevent contamination of others.
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