I don’t know if you are on Facebook but practically every marketplace page has someone making masks that have a place to insert a filter. Some are with elastic some you tie on.

A tip for breathing and not fogging up glasses, I breath in my nose and exhale with my mouth, so my glasses rarely fog.

My useless Governor is trying to get masks for every person in Tennessee, 5 million ! Doesn’t know where to get them and my state actually has just a tad under 7 million people ..... so yeah he’s a disgrace !

Hope you find some