The elastic does breaks down alarmingly quickly (I wonder if this is intentional) -- I have a box of N95 masks I bought a couple of years ago when doing some dr

The elastic does breaks down alarmingly quickly (I wonder if this is intentional) -- I have a box of N95 masks I bought a couple of years ago when doing some drywall work and the elastic has utterly failed. Meanwhile the elastic in my underwear seems to last forever! I guess I know how I can fix those masks ...