About this itemNO MORE HOT AIR COMPONENTS - The window gasket keeps the warm air from the hose of your portable air conditioner by locking the hose between the window frame and the window itself. Our window seal leaves insects, mosquitoes, rain and boxes a "closed environment" that keeps your room cooler for longer.INCREASE COOLING PERFORMANCE - The seals around your open window and then rips around the nozzle of your hose and blocks the return of warm air, making your mobile air conditioner more efficient and cooling your room in less time.REDUCED ENERGY CONSUMPTION - This window seal helps to reduce energy consumption and reduce carbon dioxide emissions, which is particularly high in summer due to the massive use of air conditioning systems. To a.