- EFFICIENT THERMAL INSULATION: This portable air conditioner window sealing cloth creates an airtight barrier to effectively block warm air from entering through window gaps. It helps maintain cooler indoor temperatures for longer periods, allowing your AC unit to operate at peak efficiency. - ENERGY SAVING DESIGN: By reducing cold air leakage, this window seal significantly lowers energy consumption during peak usage times. This not only results in lower electricity bills but also promotes a more eco-friendly cooling solution for your home. - WATERPROOF PROTECTION: Made from high-quality polyester, this 500cm white sealing cloth offers excellent water resistance, preventing rain from seeping in and keeping insects out. This ensures that your living space remains comfortable and protected throughout the year. - TOOL-FREE INSTALLATION: Enjoy a hassle-free setup with our user-friendly hook tape attachment system, requiring no special tools or expertise. Simply secure the cloth baffle in place, while still allowing for full window functionality when ventilation is needed. Use Scenarios: 1. Ideal for window AC units in apartments, ensuring a consistently cool environment during hot weather. 2. Perfect for homes with drafty windows, effectively sealing gaps to enhance overall indoor comfort. 3. Great for seasonal use, easily removable and reattachable for winter months when air conditioning is not needed. Optimize your cooling experience with this essential window sealing solution, designed for performance and practicality.