Powerful Ventilation: This inline exhaust fan with 2800 RPM can generate 2467 CFM airflow, effectively circulating air, quickly move vast amount of air to exhaust odors. Sturdy and durable: Made of high-quality carbon structural steel, not easy to deform, well-made and durable. Reduced maintenance in demanding applications, even in harsh environments. Fan bearings are NSK/SKF bearings, the best quality in the world. Low Noise Level: Durable plastic fan blades rotate smoothly, EC motor provides quiet and energy-efficient performance with minimal heat and noise.High static pressure, low energy consumption. Safety Caution: Prohibit switching power supplies from being placed outdoors orin areas with humidity exceeding 90% or in direct contact with water. Do not plug or unplug the speed controller whilethe fan is powered on and running. Widely Used: The inline fan is perfect for greenhouse, planting tent, kitchen, bathroom,,restaurant, etc., to ventilate the indoor air and ensure air circulation,Effectively eliminate odors. The 14" inline duct fan with 2800 RPM can generate 2467 CFM airflow,effectively circulating air.