Specialized machine for cleaning air ducts and ventilation systems with high efficiency. Specifications: 4600W operating power, 4000 m³/h airflow, low noise, 10.1-inch control screen, app control with WiFi connectivity, 15-meter flexible hose, high-quality carbon steel body. Suitable for duct cleaning companies, AC and maintenance companies, hotels, hospitals, commercial complexes, villas, and residential buildings. The machine helps clean air ducts with high efficiency.