Portable air conditioners promise quick cooling in summer, but they often drive up electricity bills significantly. An analysis shows: Operating costs can reach the purchase price within three years.

The EER or Energy Efficiency Ratio measures the cooling efficiency of an air conditioner or HVAC system, determined by comparing the energy output to the energy input of a unit. This rating is ...

Q: My room temperatures don’t stay very even and my old central air conditioner is getting noisier each year. What types of ...

Now that summer is in full swing, the best air conditioners on Amazon are helpful home appliances to install in a pinch.

I tested seven highly rated portable air conditioners on the market, and only one kept me from melting into a puddle.

When the weather starts to heat up, air conditioners quickly become the most energy-intensive appliances in our homes. But exactly how much does it cost to run an air conditioner?

The air conditioners were sold in three sizes of cooling power – 8,000, 10,000 and 12,000 BTU – are white and measure about 22 inches wide and 14 inches high.

The air conditioner sold at Costco, Home Depot and more stores are being recalled due to possible mold exposure. Here's what to do if you own one.

The best smart air conditioners fit in your window and can be controlled from your smartphone or with Alexa and Google Assistant.

An estimated 1.7 million air conditioners have been recalled over concerns of mold exposure caused by the units. According to the Consumer Product Safety Commission, the recall impacts U and U+ ...

Be the coolest kid on the block, even in the dead of summer with the best wearable air conditioners (also known as neck fans) for comfort, all day long.

Stay cool in Miami heat with the 10 best air conditioners for every budget, from compact window units to smart, energy-saving mini-splits.