SOLVED Where to get metal mesh filter for case?

My rig is set up in a haf 922 with the side panel set up with a 200mm fan. The problem with the Haf 922 is that the side panel doesn't have any real filter to stop dust from entering and I was looking to figure out a way to put some type of wire mesh on to help. I rather set something up where i can easily wipe down a filter every now and then, that would post pone when i had to clean out my case to every 4,5 or 6 months, instead of having to clean it out every month.

Any ideas on what i can do?

Frozen CPU has some filters. You could flip the fan in the other direction; if you have enough air being drawn from the front.

That's exactly what I'm looking for. Thanks for the quick response.

My pleasure. I'd check out Performance-PC as well. They have some nice deals.