I believe that the lid is made from the same material as the CO2 laser glasses, polycarbonate. So you only really need laser glasses with the pro, because of the pass-through slot.
Edit: I’m wrong, its glass.
I believe that the lid is made from the same material as the CO2 laser glasses, polycarbonate. So you only really need laser glasses with the pro, because of the pass-through slot.
Edit: I’m wrong, its glass.