Here is a tutorial for a face mask https://www.hometalk.com/44277695/how-to-sew-a-face-mask-part-two
Hello. Are you asking about an N 95 mask Or just a plain medical mask?
Here are some links that might be helpful the last link has all kinds of ways to make masks— pretty certain that your solution might be found there.
Here's some instructions from a Hometalker and she's included a link to what her local hospital recommends
Hello Heidi, here are a few ideas for you to try out
here is some info for you