What is a duct booster fan? – Hon&Guan

Double Speed: Low/High, - Voltage: 110/220V, - Frequency: 110V/60Hz;220V/50Hz;, - Power: 30/38 W, - Speed: 2100/2600 (RPM), - Air Volume: 128-170

Hon&Guan 4'' Silent Inline Duct Fan Kitchen Hood Ventilation Outlet Exhaust Ventilator Bathroom Air Extractor Booster HF-100S

Hon&Guan HF-P Series Inline Duct Booster Fan 8 Inch

Hon&Guan 4 Inch Inline Booster Duct Fan with Speed Controller - 130 CFM Airflow with 6W Ultra-Low Power and Low Noise : Tools & Home Improvement

Hon&Guan 4/6 Inch Inline Booster Duct Fan with Speed Controller - 130/345 CFM Airflow with 6W/19.2W Ultra-Low Power and Low Noise

Hon&Guan® Inline Duct Fan, Exhaust Fans, Ventilation Fan Accessories

Metal Inline Booster Fan, HI-150IS 6 Inch 152 CFM - 37W

Hon&Guan 6 Inch Inline Booster Duct Fan with Speed Controller - 345 CFM Airflow with 19.2W Ultra-Low Power and Low Noise : Tools & Home Improvement

🛒【High Quality Material】 Durable metal housing, ideal for long duct runs. Designed to combine EC motors for truly quiet and energy efficient

Hon&Guan 4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents

Metal Inline Booster Fan, HI-150IS 6 Inch 152 CFM - 37W

Hon&Guan 4/6 Inch Inline Booster Duct Fan with Speed Controller - 130/345 CFM Airflow with 6W/19.2W Ultra-Low Power and Low Noise

Hon&Guan® Inline Duct Fan, Exhaust Fans, Ventilation Fan Accessories