Rain-X 630543 Interior Glass Anti-Fog, 12 oz. - Prevents Fogging of Interior Glass and Mirrors, Usable on Both Automobiles and Marine Vehicles (Pack of 2)

Applied to the mirror in my camper wet bath which steamed up instantly before treatment. This solved the mirror fogging up and was easy to apply according to the instructions.

This stuff works really well. HOWEVER, it can be extremely confusing to know how to apply correctly as instructions don’t go into detail. Went through many many trial and error with this. After 2 cars and 3 bathroom mirrors here’s my findings.First obviously you have to clean surface well. Either soapy water or windex. Use paper towels. Then wipe area dry and clean off streaks and residue. Again use a clean paper towel.Second apply just a FEW DROPS (2-4 depending on area, no more than 4) to a folded paper towel. And GENTLY rub on surface keep area to about 6 or 8 square inches. Then again a FEW DROPS 2-4 for another 6 or 8 inches area. Make sure when applying there’s no moisture. The second there’s moisture it will not work.Finally, another clean paper towel GENTLY wipe away any streaks or minor smudges so glass is clear.TL:DR Key takeaways.Clean area wellVery few drops (2-4) of the stuffGentle application to limited areaMake sure no moisture on glass when applyingGentle wipe at end

It seems to work. Like anything you smear on glass, you'll have to clean your windows again when this stuff gets old. I think I could live without it

This stuff works great in my windshield when it used to fog up bad. No I have no fog at all

I thought it was in Gel form, its not. Product does not work at all helmet visor still fogs up. best bet is buy a pinlock visor insert or just ride with your visor cracked open.

Giving this a 3 star rating coz while it works on the bathroom mirror, it really doesnt last long before a reapplication is required.

Good anti-fog spray. I use it for my shaving mirror mounted in the tub.

cleans streak free