HG Power Upgraded 10 Inch Shutter Exhaust Fan with Speed Controller, 647CFM High-Speed Vent Fan with Mesh Screen, 1400RPM Wall Mounted Attic Fan for Shed, Garage, Greenhouse Ventilation, Black - APB25D

• 【New Version】: What are the differences between the new version and the old one? Firstly, in terms of material, the new model uses full metal material. The louvers, mesh cover, fan body, and even the connecting parts are all made of metal, ensuring a more sturdy product and reducing the possibility of deformation during transportation. Additionally, the new version also features an upgraded motor, providing a longer lifespan. Powerful and Efficient: The 10 inch shutter exhaust fan with infinity speed controller provides a large air flow of 647 CFM, ensuring quick and effective ventilation for your space. Say goodbye to stuffy rooms! Adjustable Speed Control: With the infinity speed controller, you have complete control over the fan's speed. Whether you need a gentle breeze or a powerful gust of air, you can easily adjust it to your desired level of comfort. Built-in Mesh Screen: The fan is equipped with a mesh screen, which not only prevents debris from entering your space but also ensures the safety of children and pets. Enjoy fresh air without any worries! High Speed, Low Noise: With a maximum speed of 1400 RPM, this exhaust fan is designed to deliver exceptional performance. Despite its powerful airflow, it operates quietly, allowing you to enjoy a peaceful and noise-free environment.