We moved to New Mexico last November, and up until a month ago the climate seemed quite pleasant. But June and July here means daily highs of 95 to 100F, and I found that too warm for working in my garage. (Fortunately the overnight lows are about 60F so there is a good time in the day to take a walk.) I could have pumped in house air because the HVAC unit is located in the garage, but garages have big doors that open periodically and that seemed to me a waste of refrigerated air.

So I have bought a “swamp cooler” and it seems to be quite effective. Keeps the garage about 15F below the outside temperature. It sits in front of an open side door so that it has a good supply of dry air to humidify.