- Easy Installation: Quickly attach this window seal around your open window to create a tight barrier for your portable air conditioner's exhaust hose. This effectively blocks warm air from re-entering your room, enhancing cooling efficiency and speeding up temperature reduction. - Versatile Compatibility: This seal is designed to fit most top-hung skylights, push-out casement windows, and inward-opening casement windows. It works seamlessly with portable air conditioners, tumble dryers, exhaust dryers, and dehumidifiers. - Adjustable Length Options: Available in lengths of 200cm and 300cm, this window seal can be customized to fit your specific window dimensions without leaving excess material or coverage gaps. - High-Quality Materials: Constructed from soft yet durable polyester fabric, this seal provides an effective barrier against heat transfer while being gentle on window frames. An adjustable tension rope ensures secure positioning. Use Scenarios: 1. Ideal for cooling down a bedroom during hot summer nights, preventing warm air from entering and maintaining a comfortable temperature. 2. Perfect for drying clothes indoors without increasing humidity levels, as it allows exhaust dryers to function efficiently without backdrafts. 3. Excellent for dehumidifying spaces, creating a controlled environment that prevents moisture buildup and enhances comfort. Choose this window seal for an efficient and versatile solution to improve your indoor climate and appliance performance.