Stay comfortable all summer long with the YUFENGYUFENG 5,000 BTU Mechanical Window Air Conditioner. With two different cooling settings and two different fan speeds - there is no doubt you will find the setting that provides you with optimal comfort. The YUFENGYUFENG 5,000 BTU Mechanical Window Air Conditioner is ideal for cooling smaller spaces up to 150 square feet. The YUFENGYUFENG 5,000 BTU Mechanical Window Air Conditioner comes with a clean filter indicator button that lights up when it is time to remove and clean it. The YUFENGYUFENG 5,000 BTU Mechanical Window Air Conditioner is designed to fit windows 23”-26” wide, and minimum height of 13”.