- Non-woven fabric seal effectively blocks hot air from entering your space, ensuring that cool air from your portable air conditioner stays inside for maximum comfort. - Perfect for users of portable air conditioners in homes or offices, this seal provides a practical solution for maintaining a stable indoor temperature. - Designed for top-hung, tilt, and casement windows, the seal can be easily removed without leaving any residue, making it convenient for repeated use. - Specifically tailored for frequently used tilt windows, it is also compatible with left-opening or right-opening window types, bottom-hung windows, and skylights. Please note that it is not suitable for sliding windows or doors. - Ideal use scenarios include cooling a living room during summer heat, maintaining a comfortable workspace in an office, or optimizing your bedroom environment for a restful night's sleep. - Constructed from durable non-woven fabric, this seal ensures strong performance in blocking unwanted heat while allowing for easy installation and removal. - Enhance your air conditioning efficiency and enjoy a cooler, more comfortable indoor atmosphere with this essential window seal.