Elastic frame

Original mask model file : https://www.thingiverse.com/thing:4237783

After seeing ctwiles youtube video and print one mask for spare.
I think hot melt glue may not a good way for filter replacement.
So I offer a simple design, using elasticity from one layer PLA to hold the filter.

3/31 update
After few test print I realize there is an opportunity of fail print on elastic layer.
So I add some bar on model to avoid it ,suggest print in 0.1mm nozzle setting with base support.