A good portable air conditioner can turn stifling rooms into cool and comfortable safe havens from the heat. This is especially relevant in the middle of a historic summer heat wave. Thankfully, we found the perfect Prime Day deal on a portable AC unit that can keep you icy cold even in the warmest summer months.

Luckily, Amazon's No. 1 best-selling portable air conditioner is a great choice for the hot summer months and it's currently on sale. Not only is the powerful Black+Decker portable air conditioner backed by over 30,500 perfect ratings from shoppers, but it is also 21% off thanks to this must-see Amazon Prime Day deal.

The Weasapor Portable Air Conditioner is on sale today at Amazon for $45. It can cool down a room with a powerful blast of icy cold air thanks to its Insta-Frost technology. The device also functions as a fan,