Danny, my shop is my two car garage, no heat, no A/C. So far this year we've only gotten to 70 twice here in the Seattle, WA area, and I enjoy cooler temps. I do use a box fan to filter the air on my right side, and another fan to my left to blow the dust away from me. It does get a mite cool at times with all that breeze, but it keeps the dust down. I moved here from Detroit and hated the hot, humid summers and cold winters there.