- EFFICIENT COOLING: Experience a cooler indoor environment during summer. This seal creates a tight barrier around your open window, enhancing the efficiency of your portable air conditioner or dryer. By adjusting the tension rope around your hose, you can effectively block warm air from entering your space. - SIZE OPTIONS: Available in 200 cm and 300 cm lengths, this seal is ideal for a range of portable air conditioners, dryers, exhaust dryers, and dehumidifiers. It is specifically designed for frequently used tilting or winged windows that open left or right, as well as hanging down and roof windows. Note: It is not compatible with sliding doors. - EASY INSTALLATION: Attaching the single-tube air conditioner sealing cloth is straightforward. Simply secure it to your window and adjust the tension rope for a snug fit. The waterproof windscreen cloth and soft material provide excellent adherence, ensuring no complicated setup or additional tools are necessary. - DURABLE MATERIAL: Crafted from robust polyester, this seal can withstand regular use, effectively preventing warm air from infiltrating your room. This maximizes the cooling performance of your portable air conditioner and tumble dryer. - PRACTICAL APPLICATIONS: Ideal for homes and offices where portable cooling solutions are needed, this seal is perfect for frequent travelers who rely on portable air conditioners in temporary living spaces. It is also great for those looking to enhance the performance of their dehumidifiers during humid months. Choose this seal for an efficient, durable, and easy-to-install solution to improve your cooling experience.