mask tensioner (covid)

thingiverse

This tensioner is designed to prevent ear stretching when wearing a mask for an extended period. Simply place it at the rear of your head, then secure the rubber straps of your mask onto the hooks. To achieve a snug fit, you can adjust the X% and Y% ratio on your slicer to suit your individual head shape. The tensioner has been successfully printed using both TPU and PLA materials. However, the TPU version appears to be more comfortable.