system
A chat on subreddit /r/me_irl
human
Okay so I’ve wondered this myself so I did some googling…

Apparently water vapor enhances the strength of smells. They’re not sure if it’s something about the smell binding to water molecules or if the vapor allows our scent receptors to work better.
gpt
This is what I’ve always been told and it’s also why you can “smell” when it’s about to rain