Dnaber
Contributor
If I could find some unscented baby shampoo I would use it again. The smell makes me sick.
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I have been known to forget the spray bottle or baby shampoo - I never forget my spit - and it works every time.
If I am not mistaken, it is not a thermal barrier that prevents the fogging. Fogging is caused by condensation on the glass in your mask. Soap or saliva breaks the surface tension that creates water droplets to form on lens causing the clouding. The condensation still occurs but the droplets can't form beads, so you look through a smooth layer liquid (soap and water or saliva and water).Anything that will leave a thermal barrier on the lens will work. Try a bar of soap on 1/2 of your bathroom mirror and take a soft towel and buff it in. take a shower and see the steam on the mirror surface that was not treated.
You're not. You're spot on in your understanding of the topicIf I am not mistaken...