Hell is Humid

The air conditioner went in our home office, on the third floor, in what is probably the second hottest, if not the hottest, room in our house. I tried installing a back-up AC unit I got from a friend last summer, but it just can't keep up with the heat that this space generates. So now I'm on a virtual quest to find an air conditioner as soon as possible so we won't drown in our own sweat while working in the office.