Perfect Aire 10,000 BTU 14-3/4 in. H x 19 in. W 450 sq. ft. Window Air Conditioner Nothing should get in the way of your comfort, which is why this flat panel window air conditioner is a sleek fit for your style and space. With a 10,000 BTU capacity, this Perfect Aire unit cools areas up to 450 square feet - and it looks good doing it. An Energy Star rating proves it’s just as efficient as 