Waterproof Design : The waterproof layer of the cleaning bag is made of high-grade jacquard fabric, which is practical and good-looking. With tight sches to the sealing strip, this cleaning cover is durable and of high quality. Full Protection : With a large piece of waterproof curtain and three small pieces of waterproof films, the air conditioner cleaning cover prevents your walls and other places from splashing/splattering of the sewage during the process of cleaning Drain Outlet It's a good assistant for cleaning wall-hanging air conditioner. The air conditioner dust-proof cover is equipped with a water external (drain) outlet and a water pipe to drain the water into a bucket.