How do air conditioners work, and what is the effect on the environment? As record heatwaves boost demand for cooling, air conditioning becomes vital – but with a steep environmental cost.

Walmart is having a sale on the Midea 12,000 BTU Smart Window Air Conditioner. The powerful AC is currently 40% off, saving shoppers hundreds of dollars.

To keep our guide to the best smart window air conditioners up to date, I've been testing window air conditioners for the past five years.

Learn how to drain a portable air conditioner properly and recognize the signs it's time to empty the unit. HVAC experts share tips to avoid leaks and simplify upkeep.

The battery-powered EcoFlow Wave 3 Portable Air Conditioner is ideal for camping, RVs, and cars. We were impressed with how quiet and cooling it was.

If the first heatwave of summer 2025 has you sweating, here's where to buy air conditioners to cool your home.

Powerful Portable Air Conditioner If you’re looking for a portable air conditioner that can handle large spaces and offer smart controls, the Black+Decker portable air conditioner is a top choice.

Beat the summer heatwave with these "super cool" air conditioner deals you can score at Walmart, Amazon, Target, Lowe's, QVC and more retailers.

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