Sew a No-Fog Face Mask

Watch the video for complete instructions. The steps written below won't make sense without it.
Place nose wire and batting within fabric and top stitch around nose wire. Use video for demonstration.
Draw nose (Line A) and chin (Line B) lines and top stitch across Line A.
Bringing right sides of fabric together, align bottom edges and stitch with 1/4-inch seam allowance.
Turn mask right side out, straighten batting, and press everything with steam iron.
Top stitch across Line B.
Working from inside mask with nose wire at top, fold down top flap, clip, and top stitch in place.
Repeat with bottom flap. Press with steam iron, then open flaps and press again.
Mark spots 3/4-inch from each corner, join with pen line and cut off triangle as shown.
Accordion fold both flaps as shown, aligning diagonal corners with edges of mask. Clip in place.
Working from front of mask, clip ends of ear elastics in place as shown.
Stitch everything in place twice using 1/8-inch seam allowance.
Center binding pieces on each side of mask, aligning edges, right sides of fabric together as shown. Attach with 1/4-inch seam allowance.
Working from inside mask, spread glue over binding and seam area as shown.
Fold over 1/2-inch side edges of binding and fold remainder as shown, covering any visible stitching along edge of mask. Clip to hold in place. Repeat on other end.
Finish mask by top stitching front of mask along binding seam.