[Keep the hot air out of the room]: This portable air conditioner window seal is installed between the window frame and the window through a hose, effectively pushes the hot air generated by the air conditioner out of the window, keeps the cold air in the room, and keeps your room cooler A very long time. [Enhance Cooling Performance and Save Energy]: Air conditioner window seals are made of material, which can effectively block the entry of hot air, let your room cool down quickly in a short time, enhance the cooling performance of the air conditioner, and help reduce energy consumption , reduce carbon dioxide emissions, save your electricity consumption and save your money. [Waterproof Function]: The casement window air conditioner seal is made of waterproof material, which can also be used in . Create a cool space on a hot summer day. [Easy to Install]: No drilling and tools required, everything you need is provided. Simply stick the portable air conditioner window vent kit to the