Crafted from polyester, this window vent set is adjustable, fitting various window types such as sliding and casement window for sealing Perfect for use in bedrooms to ensures a sleep by minimizing external noise and heat, or in spaces to create a pleasant working atmospheres that boosts productivity Ideal for homeowners seeking to improve their air conditioning efficiency and maintain excellent indoor air, as well as renters needing a quick and effective solution for portable air conditioning units The portable air conditioning window set a sealing solution to hot air from entering, enhancing your air conditioning ' s efficiency and keeping your indoor environment cool and comfortable Designed with environmental consciousness in mind, this sethelps reduce carbon emissions while providing a practical and innovative approach to home improvement, aligning with the values of consumers