The acoustic insulation duct hose is composed of composite aluminum foil and steel wire materials, with many small holes punched in the middle, which can absorb most of the noise in the airflow. It is also suitable for medium- or low-pressure air conditioning and ventilation systems. The outer glass is used to insulate the airflow. The fiber protection layer and the moisture-proof layer are made of strong, fireproof reinforced aluminum foil. It is convenient to install directly on the oval or circular interface. It is the perfect combination of high noise absorption and high-quality insulation.