u/Different-Order7200

I know there's noise suppression on apps for when you're recording and such- but I'm wondering if there's anything I can download(looking for free) that will do noise suppression in real time on games that have proxy chat but no mic settings in the game itself. Is there anything that can do this?
I'm looking for real time options because the background noise is constant on my mic(it's right in front of my mouth, picks up my pc fan) when I play a game with proxy chat or just a party chat and so on.