Energy Efficient: The air conditioner window kit helps direct the warm air out of the air-conditioned room through the hose and stops it from getting back. Cool your room down more efficiently while reducing energy consumption. Suitable for portable air conditioners with single/double hoses Perfect Sealing Choice: The air con window seal kit is crafted with durable and thick 210T polyester with PU coating for waterproof protection. Besides regulating the air exchange inside and outside the air-conditioned room, the window seal also shields the cool indoor environment from dust and dirt, strong wind, sudden rain, and insects Applicable Window Type: Application for windows that open to the left or windows that open to the right, bottom hung windows or skylights (not sliding window or door). Fits window with a maximum perimeter of 400 CM. Determine your window type before purchasing Effortless Installation: No tool or drilling is needed. All you need comes with window seal! Simply apply the adhesive hook tape to the inside of your window frame and to the window itself, and attach the window seal to the hook tape. Open the zip and place the air hose out of the window, then close the zip tightly around the hose Wide Application: Our air conditioner window seal is engineered for mobile air conditioners, tumble dryers, and exhaust air dryers to exhaust the hot air and make the device work more efficiently even with the window open, while cutting carbon dioxide emissions for environmental protection, Manufacturer: Newthinking