Review on 🤿 Cressi Perfect View Scuba Diving and Snorkeling Mask with Pure Comfort Silicone - Various Panoramic Lens Options - Liberty: Italian Design by Arnold Carrigan

I've just done 2 dives with it but the good thing is that it doesn't leak so I have a good seal around my face and water protection and it's been pretty handy. I didn't have to tighten it to the point where it left marks on my face, which I always did with my old mask, so my comfort improved. Two minuses - even after the expert's advice to prepare a new mask (toothpaste, etc.), it still fogged up a lot more than I really hoped. Disappointing. Also, my old Dacor mask had a vent valve which I was used to and liked, but this 1 doesn't have it. But it seems not many masks have this feature. Why?