This is a quiet, single-room air conditioner, and the hum that it emits is akin to white noise—it’s more comforting than annoying. It features smooth-rolling caster wheels that allowed us to move it ...

The best portable air conditioner might just help you survive the coming summer months, especially if you have an antiquated unit and no way of installing a newer wall or window air conditioner. With ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A portable air conditioner is just what it sounds like — a mobile device that delivers cool air where and ...