When it's hot outside (at night) and I turn on the AC, fog starts building up on the windshield. What's the science behind that? - Quora
When it's hot outside (at night) and I turn on the AC, fog starts building up on the windshield. What's the science behind that? - Quora
![Car windshield fogging up with moisture when cold. Not sure how to prevent this from happening every time I enter the car. There doesn't seem to be any moisture in the car Car windshield fogging up with moisture when cold. Not sure how to prevent this from happening every time I enter the car. There doesn't seem to be any moisture in the car](https://preview.redd.it/p74cms4xme361.jpg?auto=webp&s=a26083c2405312b6d7b004d62a1cc1cdfdb46131)