Originally Posted by
mojo6912
My case (Fractal Design Arc Midi) has filters on the front and bottom intakes, filters on the top exhaust and no filter on the side intake. Why would you put a filter on the exhaust before the intake?
Anyway, I made a filter by overlapping two window screens (the ones that keep the bugs out when you leave the window open) so that the holes are even smaller and used a nice plastic frame (or you can use tape) that I luckily found at the hardware store for like $2 to secure it and put tiny magnets on the back at it works amazingly. Or you can just buy some filters but they are more expensive than I think they should be.