So the title says it, but I'll clarify if it's unclear. I'm trying to find a way to reduce the amount of dust taken in by my new bottom intake PSU fan. Right now it's over a rug, which I know is full of dust (because carpets get dusty, not because I don't clean) I'm worried about a dust filter reducing airflow, so I'm a little reticent to do that, though that may be the option to use. I thought about putting it on a hard surface to reduce the amount of dust, but that feels like I'm not going to do much other than slow the process. Any good suggestions?