Rain-X anti fog

[annadomino]

Bought this this morning, but I can't find, either on the label or online how often it needs applying. Or is it a one off treatment. TIA

[gingejbee]

I think you re-apply when it stops working properly which depends on lots of factors- like how much moisture is in the air, temperature etc.

[Toureman]

I have used it for years, if applied properly once you get over 40mph you can switch off your wipers and watch the rain fly up your windscreen and disappear.

It will need re-applying once a month to keep it working properly, moisture in the air or temperature does not effect it at all.

The less you use your wipers the less it needs re- applying.

Use it on the side windows and rear as well.

[Toureman]

Sorry that's for the rain x outside trearment !

It's about amonth with the Anti Fog though.

[gingejbee]

Toureman: the question was about Rain X ANTI-FOG.

[annadomino]

Must look for outside one, my problem is mist/huff on the inside.

[MantaRay]

I never found the interior anti-fog to be as good as hoped so never stuck with it, anybody else rate it?

Regarding Rain-X for the exterior of the windscreen, as Toureman indicates, it's amazing stuff and in certain conditions is BETTER than using the wipers because the water beads immediately it touches the windscreen. The faster you go the better it works! "But officer I was driving at 100 in a 70 limit for improved visibility!"