FYI, the back is open
Works as designed, but I have some comments I want to share:
- The face mask is only the front, so the back is open. This allows for better ventilation I think
- With glasses it worked for me, but I had to put on the glasses first, then the face mask. Fogging up is not a problem if I put anti-fog from Zeiss on my glasses
- The material is light, so you don't feel too bothered by the mask






