This is a mask designed for a nurse, by a nurse so that has some pretty great pedigree. I've sized it to be printed out pretty close to 100% scale (the usual caveat - make sure the square is 1", yada, yada, yada), but includes a video and copious photos. This is a great design from a nurse and works well on all sorts of sizes. Whether for a voluteer project or simply for yourself, this is a great pattern and great design to use. It will always remain free and always available here in the Resource Library.