KEEPS COOL AIR IN: The whole point of air conditioners is to cool the air. Window seal for portable air conditioner that keeps cool air inside your room by efficiently diffusing warm air out of the window. Your air conditioner cools your room faster and cheaper. The window vent kit also prevents flying insects and spiders from entering the room through windows or door seams. Convenient and economical: Made of durable waterproof material. Just the zipper between the window and the window frame and regulate the air exchange effectively and prevent dust and rain. You can open or close the window at any time without removing the window seal. You can also remove it and install it again next summer to save money New design: a major update to our air conditioning seals, instead of other closure seals flash, our products are designed with adjustable couplers with two coupler openings and single opening with better sex tightness and less air convection. Save electricity on hot summer days and save a lot of money by choosing the right size for your air conditioner and the style of your windows. Save Energy-- Kit Aircon window covering, a great solution to save money on electricity bills and environmental protection. Easy to install: everything you need for installation of our window seal is already included in your package. No Need for Expensive Installation Kits and Tools Saves you from having to perform the often costly and laborious task of drilling a hole through the wall. Within seconds you can enjoy a cooler environment in summer.