Here are the steps I go through to make masks.
MATERIALS: cotton fabric(9′ x 15′), polypropylene(8′ x 12′), elastic straps (8.5′-9.5′), pipe cleaners, heat bond, threads, toggle beads.
Sew the two sides of the gap. Then take it to the ironing board to iron along seam, shift seam down 1/2 an inch and iron again.
The space you created is where you will glue the nosepiece / pipe cleaners.
I WASH THE WHOLE MASK.
STAY SAFE and STOP THE SPREAD
FLOW on the SEW