This will be my last mask tutorial. If you missed the others, I'll link to them. This is an easy way to make a 4-ply cotton mask with ties. The ties can be ribbon, cotton sewn in a tube and then turned right side out (I have a lovely neighbor making these for me!) or simply serge a thin piece of fabric. Go, sew!
2-Ply Cotton Mask
2-Ply Cotton Knit Mask