It may sound funny but here was my method.

I took an air hose and started blowing off all surfaces with one hand. Then in the other hand I had a garden hose with a misting attachment on it in the other hand. Then as I kicked up the dust and dirt into the air, I fanned the air with the mist to put it into the water and knock it to the floor. Then I hosed the floor out the door 4 times before I pulled the pickup in and started the window fan on one side of the garage and duct taped a furnace filter over the window on the other side of the garage for clean makeup air.


So the bartender says to the horse " Gee, Why the long face?"