8'' Silent Inline Duct Fan Ventilation System With Speed Controller Air Exhaust Extractor With EC Motor Ventilator ,Energy-Efficient

Effective Ventilation 8 Inch Inline duct fan with a fan speed 3000RPM for an airflow 1250mh moves air through your target location efficiently for optimal ventilation But we do not recommend the machine running the whole day without a break. Variable Speed ControllerEquipped with a variable controller can be adjusted the speed from 0%~100% which meets your different requirement while operating. The wired controller designed with a 5m long cord, more convenient to control. Waterproof and DurableWaterproof grade is IP44, anti water drop. The fan body is made of high-end ABS pliable plastic that is unlikely to break, light and easy to clean.