Features: Improves air quality and ventilation efficiency with a 58m³/h inline duct fan designed for smoke extraction and airflow management. Constructed with a full metal body and reinforced coating for durability, this fan operates quietly while providing strong suction and energy-efficient performance thanks to its metal blades. Suitable for residential and commercial use in environments such as kitchens, workshops, restaurants, internet cafes, and cinemas where reliable air circulation and odor removal are required. Designed for easy installation with compatible hole sizes of 20mm, 25mm, 32mm, 40mm, and 46mm. An effective solution for maintaining proper indoor ventilation. Specifications: Input: DC12V 2A Speed: 16,700 RPM Airflow: 58m³/h Compatible Sizes: 20mm, 25mm, 32mm, 40mm, 46mm (optional) Package Includes: 1 x Duct Fan Set Note: Please allow 0–1 cm variation due to manual measurement. Actual product color may vary slightly due to monitor display differences.