NO MORE INTRUSIVE HOT AIR - The window seal keeps the hot air diffused by the pipe away from your mobile air conditioner by blocking it between the window frame and the window itself. Our window seal keeps out unwanted guests and rain and provides a closed environment that helps keep your room cooler for longer. INCREASE COOLING PERFORMANCE - Enjoy a clean environment cooler in summer thanks to ! Our product seals the edges of your window even when it is open. It surrounds your air conditioner vent and blocks the return of hot air, allowing your mobile air conditioning unit to be more efficient and cool your room faster. REDUCES THE ENERGY CONSUMPTION love the Earth! This window seal helps reduce energy consumption and carbon dioxide emissions, which is particularly important in summer due to the massive use of air conditioners. By preventing hot air from circulating in your room, the window seal helps you save on your electricity bills! AVAILABLE IN 4 SIZES - Suitable for all portable air conditioners and dryers, regardless of manufacturer. This joint can support up to two vent pipes. This kit contains 2 fabrics of 230 cm each. Measure the perimeter of your window to choose the right size. This kit is suitable for windows with a perimeter ranging from 381cm to 460cm. EASY TO INSTALL WITHOUT DRILLING - No need to buy anything extra, everything you need is supplied with your HOOMEE Window Seal! Both fabrics will cover the top and bottom of your center pivot window. Once properly installed, you can easily close your window by detaching the 2 fabrics from the adhesive strip.