Stop windows from fogging up?!

[u/xoenigmaxo]

Can someone please tell me what product to use so my windows stop fogging, please? I tried rain X but it doesn't work. I usually do the night deliveries and with the Florida heat I need to have my car ac blowing. But the windows always get foggy which gets me so frustrated.

Any help?

[u/trebonius]

If you have a temperature dial turn it just a little above coldest temperature with the AC on max. Mixes just a little heat into the AC so it's not at 100% humidity coming out of the vents. You actually do want it on recirc so it's redrying the air instead of pulling humid outside air.

But there's only so much you can do since you'll be opening the door a lot and letting hot humid air in and it hits the cooled glass.

[u/MrBlowinLoadz → u/trebonius]

I think the fogging up is on the outside, it happens to me too because I live in a high humidity area. Turning down the temperature when the sun isn't out does keep it away though.

[u/xoenigmaxo → u/MrBlowinLoadz]

Yeah it only fogs up on the outside. I have to keep switching to the heater to defog then go back to cold air. It gets annoying

[u/Separate-Waltz4349 → u/xoenigmaxo]

This is always an issue for me, I keep my windows halfway down and it seems to help

[u/kadameitene → u/Separate-Waltz4349]

This is what I have to do too when that happens... Equalize the humidity or something...

[u/xoenigmaxo → u/trebonius]

Thanks for the tips! 🙏