I have one of those $10 white box fans in my 'shop' (one side of a two car garage) that I keep running when I'm working. An air filter is just not in the cards at the moment. I'm wondering if I can get a fan like the one below and put it in the center of the empty car space aimed at the open garage door, if it would help the air quality and the cleanliness of the garage. Anyone have any advice, experience with this idea?http://northerntool.digby.com/shops/...9&vendorId=110