What's your best mask defogger?

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Spit, or baby shampoo. Not green lungers.
 
Spit but I have also kept the small bottles of shampoo that hotels leave out for guests and they usually work well and pack nice.
 
Spit but I have also kept the small bottles of shampoo that hotels leave out for guests and they usually work well and pack nice.

You've not had any issues with normal shampoo stinging your eyes?
 
Spit doesn't seem to do anything for me. My mask fogs up in a few minutes. I never tried baby shampoo. How do you use it?
 
Don't remember ever having regular shampoo sting my eyes but I only use a small drop on each side and rinse it off so that there isn't much left. I ran out of my supply of the small bottles and most likely will not be replacing them. Spit works just as well and I don't have to worry about it.
 
Spit.

but here's a tip, you know how they say to use tooth paste to inormally clean your lens, instead I use bon Ami.
We use to use it in the sign business to clean window glass absolutely clean before we did reverse glass gilding (bank gold).
Remembering that I prepped my mask with Bon ami and it worked better than anything else. My experience is that nothing will work well if your mask has a film left on it.

The other slimy material that works well besides spit is abalone slime. I figured that one out by the process of similarization. Any mucous based material will work and abalone or fish slime is king.
 
Spit doesn't seem to do anything for me. My mask fogs up in a few minutes. I never tried baby shampoo. How do you use it?

If you haven't already, take a lighter to your lense, the chemicals from manufacturing and I think also over time bleed onto the lenses which will not help a fogging issue at all. I find a lighter works more effectively than toothpaste. I burn the lense until a black soot appears, burnt chemicals, then give it a good clean with hot soapy water. I usually repeat this process once a year. Just before descending I spit in my mask and thoroughly rub around lense, I dip it once in water and then put on. I've been doing this for a fair few years and don't remember the last time my mask fogged.
 
https://www.shearwater.com/products/peregrine/

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