<strong>Yahoo Message Number: 13293</strong>Hello<br/><br/>In the photo section, I saw a picture of an air filter for the air intake side of the Hurricane furnace. It was black and looked about 4 or 5 inches in diameter. Looks like a DIY project that I would like to do. Does anyone know the source of this air filter. Seems like it would protect the system much better. I still get dust inside my...