Use this stencil to sew face masks faster! Cut your mask shapes directly and skip the trace with pen stage. The outside is the cut line, inside is the sew line. The slot is the cut line for the liner. When printed, long flat side should be 4.5"

For sewing instructions, check the internet for several techniques. A similar pattern is made by Twisted Needle Textiles (TNT). They have a FREE PDF with instructions found here (and some crazy textile patterns. Support them and buy your fabric there!! Some are NSFW, so be advised)

https://www.twistedneedletextiles.com/products/tnt-face-mask-pdf-pattern?_pos=1&_sid=c0ac843fc&_ss=r

Their pattern is larger than this one, and I have a stencil that matches their design here:
https://www.thingiverse.com/thing:4335865

You can also scale this pattern up for larger sizes. For smaller sizes, the slot might be too narrow if you scale it down. I'm hoping to make a smaller version with same slot width soon, and will add to this thing when I do.

FaceCoveringChallenge