You might see an EER (Energy Efficiency Ratio) number for your portable air conditioner, which measures the cooling ...

A window air conditioner is a practical and cost-effective way to control your indoor climate. These compact units are reliable and effective, all while using less energy than models built just 10 ...

Window AC units tend to be larger and more powerful, and research from Appliance Analysts indicates that their coverage gets more reliable as their power increases, up to around 700 square feet ...