Keep Your Room Cooler: Our air conditioning door seals allow hot air to escape from inside the room through the exhaust duct. Suitable for all portable air conditioners and tumble dryers, this sealing cloth insulates the room from hot air and summer sun, keeps fresh air in the room, improves the efficiency of the air conditioner and prevents mosquitoes from entering the room to enjoy your cool summer days. High-quality Material: The door seal is made of professional 210D polyester material with a waterproof and environmentally friendly PU coating. Washable, reusable, insect-proof and UV-resistant, it is effective against the penetration of dust and rain and can be used safely even in humid weather. Easy to Install: No drilling is required and no damage is caused. Simply attach Velcro with strong adhesive to the edge of the door frame, attach the door seal to the Velcro reinforcement, and secure the exhaust hose with a zip tie. Wide range of applications: This door seal for portable