Just tried different shapes of improvised filtering facepieces. I guess, it's best to keep it simple – the anatomically shaped ones can fit perfectly ... or totally bad. Or something between that ;) I've thrown them away.
A rectangle shape with folds, a pipe cleaner and some elastic band work well and win the race.
I want to make lots of them, ideally they should fit everyone. Some facilities are searching for such simple masks (e.g. retirement homes).
#staysafe
