4/19/2016. I have a three car garage that has a single door on the side where I enclosed the carport. I took out the top panel and replaced it with structure to hold filters. There is a evaporative cooler in the main garage that is quite effective in keeping the garage cool enough to paint in the spring and fall. In the summer the humidity goes up enough that the cooler becomes inefficient. So the airflow plan is to get filterer cool air into the carport and exhausted with the fan I installed in the wall. It actually works quite well. I also made some portable strip lights made from lumber roller stands and 4-foot LED shop lights.