Review on Keystand Full Face Snorkel Mask With Breathing Mechanism And Crystal Lens - 180° Panoramic View, Anti-Leak, Anti-Fog, Detachable Camera Mount Included by Ben Demers

The mask seems to be great quality. I wore it around my pool for about 15 minutes with no leaks and very little fogging. The issue is exhaling. When you’re under water the vents are tough to push the air out of and your breathing feels a little labored. I could not get used to the feeling and will be switching back to the traditional mask and snorkel. You also can’t pinch your nose to clear your ears if you want to dive deep. Cool concept but until breathing feels normal like a traditional snorkel, I won’t be using it.