The best air conditioners in 2021

Table of Contents: Masthead StickyA window air conditioner should cool your space quickly and quietly. The best air conditioner is from LG because it uses ultra-efficient inverter technology and runs quietly.For those who don't have central air to cool their space, window air conditioners are the next best thing. They can fit in your windows for convenient cooling, and if you choose one that's Energy Star certified (which many of our picks are), your bills won't run up too high. Despite wha