But is there a situation on a dive where removing your mask temporarily would somehow be helpful?
If/When my mask fogs I'll lick it on the dive, and that usually fixes the problem.
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But is there a situation on a dive where removing your mask temporarily would somehow be helpful?
I like the one about taking it off to blow your nose--but I never have to do that as I avoid diving with a cold and outgrew all my bad allergies in my 30s.
I know it's not new idea, but I've been in the habit of using plain old baby shampoo as my defog of choice. Much cheaper and doesn't sting the eyes as much. Works great. I was actually introduced to the idea on a snorkel charter, that's what they used and that's good enough for me.I was on a dive once where one of my buddies had used a defog that was new to him. Partway through the dive, he rolled over on his back to look at the bottom of something, and got his eyes full of water with defog in it. He got an awful reaction -- his eyes stung horribly and turned bright red. He took the mask off, rubbed it and rinsed it repeatedly, but we had to call the dive and go in. We guided him, and he kept his mask off.
Why bother clearing out the mask before getting back on the boat? You would be surpised at how the other divers seem to get out of your way and let you sit down, when you have a bunch of flim hanging from your nose. Just an observation I have heard from a "friend".