These masks include a pocket that allows you to insert a filter into the mask for added protection. It also includes a pipe cleaner for a better fit around the nose.
Supplies needed:
Outer layer of quilter’s cotton 6 1/2” x 9 1/2”
Flannel layer 6 1/2” x 9 1/2”
Inner layer quilter’s cotton 6 3/4” x 9 1/2”
2 pieces of Elastic 1/4” or 3/8” wide 12”-13” long
Pipe cleaners (craft style) one 6” long piece
Some articles about homemade masks and what materials to use: