Sold on a window AC unit but not sure where to buy one? You can usually find air conditioners in stores like Home Depot, ...

So our first and best advice is to buy a window unit, which can be both cheaper and more effective at cooling a room. In our portable air conditioner tests, we measure how long it takes a unit to ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more I've tested 30 units for our best air conditioner guide over the last six years. I evaluate many ...