I built my first PC about 3 months ago. Right now it's a pretty simple build. However I would like to cover the top grill of my case so no dust gets in through there as Corsair didn't make a filter for the top. I will be getting more fans later on, it's just for now.
I would like to know what material I could use to cover it up from the inside. Thank you.
In case you want to know about my PC's specs, they're in my profile. Don't mind the GTX 650Ti as I bought it before I built the PC and I wasn't going to throw it away.