Filtering

[TheSavageBeast]

Is there anything I could use to filter my case, I live in the city and the air quality is very poor I'm surprised we're all alive, then there's the Persian cat, dust from the litter pan, etc... I bought one of those V8 CPU coolers from whoever but the crap air is just getting in the case vents and polluting everything in the case, I'm a smoker as well so it's a mess and I get tired of having to tear everything down and cleaning everything every couple of months it would be a lot easier just to remove some dirty filters and wash them out and pop them back in. Thanks

[MaDef]

Quit smoking, shave the cat, and move to Rifle Colorado (elevation will put you above the pollution)

But to answer your question, you can buy fan filters, both the disposable or re-usable types.
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The thing about using them though, is they tend to restrict more and more air as they get dirty, so you have to clean them more often.