Features: Improves air quality and ventilation efficiency with a 58m³/h inline duct fan for smoke extraction and airflow. Constructed with a full metal body and reinforced coating for durability. Operates quietly while providing strong suction and energy-efficient performance with metal blades. Suitable for residential and commercial use in kitchens, workshops, restaurants, internet cafes, cinemas, and other spaces requiring reliable air circulation and smoke removal. Designed for installation with hole diameters of 20mm, 25mm, 32mm, 40mm, or 46mm. An effective solution for enhanced indoor air quality and proper ventilation. Specifications: Input: DC12V 2A Speed: 16,700 RPM Airflow: 58m³/h Compatible Sizes: 20mm, 25mm, 32mm, 40mm, 46mm (optional) Package Includes: 1 Set Extractor Fan Note: Please allow 0–1 cm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you!