Do you have any sizes of masks for Ambida medical devices?

Except for children's models, adult models are of different sizes. Anbida's mask is designed in 3D, which fits the face very well. People who wear glasses all the year round like me are very comfortable and won't sweat. Going out for a long time is still somewhat breathable. If it is a small face, you can try to tie a knot in the ear belt, which will fit more tightly and be much more comfortable.