Snug Fitting Filter Mask

thingiverse

This filter mask consists of a frame of flexible fingers that press filter material snugly against your face to eliminate leaks. The large filter area both makes breathing easier and reduces the back pressure to minimize any leakage airflow. The filter material is held in place by being pressed against your face by the flexible fingers. There is also a set of barbs around the perimeter that you can use to pierce the filter material to keep int held in place as you put on or take off the mask. This mask should fit a wide variety of face shapes, but can be further customized by scaling the X and/or Y axes by up to +/-10% It required a piece of filter material (old t-shirt, microfiber cloth, or cotton dishcloth) 6.75" in diameter, and a picece of 1/2" wide elastic about 40" long.