- Efficient Cooling Performance: This window seal for portable air conditioners effectively blocks warm air from re-entering your space. By creating a tight barrier around your window, it enhances the cooling efficiency of your mobile AC unit, allowing you to achieve a comfortable temperature more quickly during hot summer days. - Versatile Compatibility: Designed specifically for portable air conditioners, dryers, exhaust fans, and dehumidifiers, this seal fits a variety of window types. It is compatible with tilting windows, wing windows, left or right-opening windows, bottom-hung windows, and skylights. Please note that it is not suitable for sliding windows or doors. - Adjustable Size Options: Available in lengths of 200cm and 300cm, this seal accommodates different window dimensions. Its durable polyester material, combined with an adjustable tension rope, ensures a snug fit tailored to your specific window opening, maximizing the performance of your cooling or drying appliance. - Simple Installation: Installation is hassle-free—just place the seal around your open window and adjust the tension rope around the exhaust hose of your appliance. No tools or complicated setup are required, making it an ideal solution for maintaining a cool environment without permanently altering your windows. - Practical Use Scenarios: - Use it with your portable air conditioner to keep your living room cool during family gatherings. - Ideal for maintaining low humidity levels when using a dehumidifier in your basement. - Perfect for quick installation around windows in guest rooms, ensuring comfort for visitors without extensive setup. This window seal is a reliable solution for enhancing the efficiency of your portable cooling and drying appliances while providing a custom fit for various window types.