【Efficient Cooling, Energy Saving】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 to save your electric bills and cutting carbon dioxide emissions for environmental protection.【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. 【Effortless Installation】Require no more complicated steps like drilling holes or using extra tools. Follow the detailed instructions to finish the installation in minutes. It’s easy an.