Doing house repairs gets to be pretty hot. I was an idiot & ran our cooling method while I put up drywall in our home. It made sense at the time to me. I was hot & hot & begging for AC. The AC method kept myself and others chilly while I ripped down walls & moved new heavy drywall all over. I even remember thinking that the a/c was helping to transfer the dust around, however when taking down & adding walls, dust flies all over the site! Usually I end up inhaling it or covered in a pale white layer. With the cooling method on, the dust was always moving & did not bother myself and others with our mask on. Well after I finished the installation I realized using the AC was a mistake. The drywall dust got sucked up into the cooling system. The whole inner workings including the fan & motor were totally obstructed with a layer of pale white film. The air cooling unit looked super gross. I knew I could not run the AC in that condition. It would have for sure overheated with all the gunk in it, however because the dust was so much I was forced to call a cooling business to scrub it out. It was pretty high-priced to have done too. If I would have just used a fan or endured the heat, our AC method would have been fine. I am just thankful that I did not totally wreck our cooling unit using it with so much dust in the air quality.