<ul data-eligibleForWebStory="true">Amazon is offering a Black+Decker 5,100 BTU Portable Air Conditioner for $225, a $105 discount from its usual price.The portable AC has received over 30,000 five-star ratings on Amazon and can cool up to 350 square feet.It functions as a fan or dehumidifier and comes with a remote control and window kit for hot air exhaust.Customers praise the unit's cooling efficiency and convenience for spaces like bedrooms or studio apartments.