The best portable air conditioners keep rooms cool and offer a degree of air filtration. We test for cooling ability, noise, and energy efficiency.

Our experts say these portable AC units from brands like DeLonghi and Honeywell are worth buying. They're movable and keep your home cool and humidity-free.

As we make our way through the cold months of winter, one thing is certain - indoor air conditioner covers are a must-have.

An air conditioner does the necessary job to maintain comfortable surroundings in a living space when temperatures are ...