Hearing you lament about a "big fan" reminds me of an episode of the Beverly Hillbillies where Phil Silvers, the con man, tries to get Jed to invest money in his project to rid L.A of smog. He wants to put some big fans on top of the mountains surrounding L.A to suck the smog out of the basin and blow it eastward. Sounds like a good plan, you may be on to something. I am sure we can get some money from Congress to assist in this lucrative investment.....