When my new Dust Bee Gone mask arrived, I discovered that it was just a little too big for my face. I was pretty sure that the youth mask would be too small, so after consulting with the woman who designed the mask, I got to work. I detached the mask from the lower tie, and trimmed off about a half inch. I then basted the parts together to secure them for machine sewing. I also trimmed off about 3/4" from each end of the lower tie, which meant removing the velcro pieces and repositioning them. When everything was fitted properly, I sewed the pieces securely into place with my sewing machine.
Now the mask fits perfectly, and I look forward to giving it a "test drive" in the shop tomorrow. Among the features that attracted me was the fact that you can talk without having to remove the mask, a terrific advantage if you do demos involving cutting or sanding.