I recall that where I live, in the '60s before retail moved from downtown to the shopping malls, these Airtemps were a popular choice for downtown businesses. Nearly all the retail establishments had air conditioning by this time; it was a way of attracting business since there were still a lot of homes that didn't have it. Usually smaller shops stuck them in the transom over the front door. Smarter business owners knew to attach a length of garden hose to the drain outlet on the outside and run it down the wall to the sidewalk, so that customers coming in wouldn't get dripped on. But then the condensate water running out of the hose and across the sidewalk created a slippery spot. The city wouldn't let them dig up the sidewalk to run the condensate to the curb, so unless there was a downspout nearby to plumb it into, they were stuck with that.
We had two window units at our house. The living room one was an RCA Whirlpool; I recall that it got cold and blew a lot of air, but it was noisy even on low speed. There was another unit in the den, which might have been a Coldspot; I don't remember for sure. To turn it on, you had to push one of the "fan" buttons and let the fan start up before you pushed a "cool" button; if you didn't, it would blow a fuse. It didn't move as much air but it was much quieter. My mom didn't like the noise from the Whirlpool, so it was shut off at night and the Coldspot was left on low. However, it usually froze on low, so in the morning it would have to be turned off for a while.
Unlike most of the '60s era of window units which had squirrel-cage fans, the Coldspot had a prop-type fan, right behind the intake grille. One day my dad had the grille off to clean the filter. I was sitting on the couch underneath the window that the Coldspot was in. I reached back and accidently stuck my finger in the fan. Much to everyone's surprise, including my own, it merely stalled the fan and didn't hurt my finger at all. After that, I used to dare neighborhood kids who came over to stick their fingers in the fan, whenever I could get the front off without Dad catching me.