This might be a dumb question. But, the store is closed now and I wanna make sure I got this right. I just bought a carbon can filter with a 8" can fan. I was just looking at it and hoping I have the fan on the right way. It doesn't have a label on it. So.. Which way does the fan go? Common sense would tell me that the bottom is the part where you can see the wires and that would sit on top of/inside the filter?? On top would be the part where you can see the fan moving? Here are some pics . Can someone please tell me if I have this right. I think I do. But just wanna make sure. Also, as you can see, I'm not exhausting it. I just plan on recirculating the air.