What kind of defogger stuff should I use on a snorkel mask?

Question

What kind of defogger stuff should I use on a snorkel mask?

Answer 1

saliva works great. Spit into your dry mask and then dip it in the water to rinse it.

An old saying, "the greener, the cleaner".

Answer 2

Use your own saliva.  Alternatively, if that doesn't appeal, you could go and buy a commercial defogger, but really, save your money.  Just rinse, spit, rub and rinse again.

Answer 3

Not to gross you out, but I have always spit in my mask, rubbed the saliva around the lenses, and wore it. It stops the fogging. The buddies I used to dive with always did the same thing.