32 DegreesCool 3 Pack Reusable Unisex Adult Comfort Face Covering Mask, Large

Q: What does medium mean?

Medium means it fits some women's or teenager's face. It is a little too tight for my adult sons and husband.. I can wear just fine for errands but it is harder to talk in. The large size is better for me.

Q: Do these masks meet CDC requirements for airline travel?

As far as the mask meeting CDC requirements I don't know 100%. I do know I've been in & out of 3 different airports & have had NO problems. I do wash them with wool light by hand, hang them & there dry in the morning. Hope this helps