But the best option ... new split system central air conditioner in the U.S. today is 14, which is at least 20 percent more efficient than minimum-efficiency models made even 10 years ago.

That takes an average of 20 minutes. By comparison, the best window air conditioners can cool the room by 10° F in about 15 minutes or less. For brownout tests, we set the AC to its lowest ...

A portable air conditioner is the ideal choice for spaces that don't have access to a central air conditioner ... top options to help you choose the best one for your needs.

He is in charge of developing and carrying out testing procedures for a wide variety of home appliances and smart devices including robot vacuums, smoke/CO detectors and air conditioning units.