Over-mask fog stopper

Do your glasses fog up when you wear a mask?

Fogging mainly happens when your mask doesn't seal to your face around your nose, so your breath goes up past your nose to near your glasses. This device fixes that problem - it goes over the mask and holds it snug on your face, blocking the fog. The semi-flexible design accommodates a wide range of head and nose sizes.

THIS DOES NOT COME WITH ELASTIC. You'll have to tie your own elastic onto it. (Don't have your own elastic? Well, do you have any used disposable masks? You can cut the elastics off of one and tie them together to make an elastic strap for this.) I personally use a single elastic strap that goes behind my head; it also works to make two separate ear loops, if you prefer. The holes for elastic are 3mm (1/8 inch) in diameter.

It's designed to be worn high up on your nose (over the bony part, so it doesn't constrict your nostrils), with the ends going near the bottom of your ears.