This is a remix of this thing
I've added a middle pin which helps the mask to better stay in place. Also I made a little smaller version which fits better to my nose.
Also I retopoed the model, it now has a meaningful topology.
Printer Brand: Creality
Printer: Ender 3 Pro
Rafts: Yes
Supports: No
Resolution: 0.20
Infill: 25%
Filament: eSUN PLA+ White