Mute Exhaust Fan Mixed Flow Frequency Conversion Duct Fan Pipe Ventilation Air Ventilator 150/200/250mm ,Easy to Use

1. With iron shell and antirust coating, it is not easy to be damaged by corrosion 2. Can work silently, there is basically no noise during work, no need to worry about disturbing people 3. This duct fan has strong exhaust power and is simple and convenient to install 4. Wide range of uses, mainly used for pipe exhaust, ventilation, etc. 5. Strict quality control and quality assurance, high safety factor, can be used with peace of mind