- Effective Warm Air Block: Our window kit features a sealed barrier design that efficiently blocks warm air from entering your space. This enhances cooling performance and prevents cold air loss, ensuring consistent heat insulation throughout its use. - Versatile Compatibility: Designed for both interior and exterior opening windows, this kit accommodates single and double ventilation adjustments. It fits window circumferences up to 300 cm, making it adaptable to various window sizes. - Durable Material: Constructed from waterproof fabric with UV-resistant properties, this kit significantly reduces heat entry and withstands weather damage. It helps maintain a dry indoor environment for your comfort, regardless of outdoor conditions. - Effortless Installation: Enjoy a hassle-free setup with our innovative zipper and tape system, which requires no drilling. The straightforward three-step assembly allows for quick installation and easy storage. Use Scenarios: 1. Home Cooling: Ideal for keeping your living space cool during hot summer months by blocking warm air from entering through windows. 2. Energy Efficiency: Perfect for energy-conscious consumers looking to reduce air conditioning costs by maintaining indoor temperatures more effectively. 3. Outdoor Gatherings: Great for use in patio or outdoor areas to create a comfortable environment by minimizing heat and humidity intrusion from outside.