Choose the right size: Window -type air conditioning unit cover can be adjusted, size is 21LX15HX3.5D, 5000BTU to 7000BTU window type air conditioners or interior type air conditioning unit is suitable for most of the dimensions. Double Insulation: Windblock Poly Inner Primer and the outer cover are sewn for easy installation. The indoor air conditioner cover covered with embedded cotton prevents hot air from escaping and cold air from entering the air conditioner. Reduces heating costs by preventing heat loss in winter. Double strap fixing: The adjustable belts on both sides and the elastic cords around them allow you to achieve strict harmony. It adapts personalized. Closed window AC protection case has two setting straps with snaps, elastic straps make it easier to wear and remove the case. Soft Material: Closed AC case can easily adapt to your white home style from high quality soft polyester fabric, washable design, high quality and durable. Reduces heating costs: eliminates the need for removing and releasing the air conditioner unit and reduces energy costs. The white window AC case does not only protect the air conditioner unit from dust, but also keep your room warm in winter and prevent dust, rain and abdomen from entering.