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If I thought they were safer for the diving I do, I would use one. But I don't, so I don't.are full face masks safer, or do they introduce more risk?
When we went to Maui and took a snorkeling trip to Molokini Island, the people on PacWhale Eco Adventures suggested (and used for every mask provided) a 1:10 ratio of Johnson's Baby Shampoo in water as an anti-fog. Guess what? It works, and we have been using it in the pool for our swimming. Squirt it on, rub it around, and lightly rince it off right before getting into the water.I agree with both John's suggestion of silicone skirt and BlueTrin's suggestion of low-volume/large lenses.
I've been using a Cressi Big Eyes Evolution Crystal for 2.5 years/~300 dives because it's comfortable, provides great visibility, and has corrective lenses available for it (which I use). I've spotted some larger marine life on occasion in my peripheral vision, which I wouldn't have seen had I been wearing a mask with a black skirt.
As an aside, Cressi also makes a great defog gel. And no, I've never worked for nor received any compensation from Cressi.
I do that but with baby shampoo and a week (or even a month) before. Never fogs up.For mask fog, maybe the best tip I've gotten was to add the defogger the night before, or early morning of a dive and just leave it on until you get in the water.