The Delonghi AS00003208 Portable Air Conditioner Insulating Foam, a must-have accessory for your portable air conditioner. This insulating foam is designed to enhance the efficiency of your air conditioning unit by providing a snug and secure seal around windows or doors, preventing hot air from seeping in and cool air from escaping. Crafted with high-quality materials, this insulating foam is durable and reliable, ensuring long-lasting performance. Keep your space cool and comfortable with the Delonghi AS00003208 Portable Air Conditioner Insulating Foam, the perfect solution to maintain optimal temperature control in your home or office.