8 Inch Inline Duct Fan with Smart Controller – High Airflow Grow Room Ventilation This 8 inch inline duct fan is engineered for powerful yet quiet ventilation in larger grow environments. Perfect for hydroponic grow rooms, large grow tents, air extraction systems and air circulation setups, it maintains stable temperatures and humidity while operating with low noise levels. Using an advanced mixed-flow design and a high-efficiency PWM controlled EC motor, the fan delivers strong airflow while consuming less electricity and producing less heat than traditional extraction fans. Key Features High airflow ventilation for larger grow rooms Wired 10-speed controller included Compatible with smart environmental controllers Energy-efficient EC motor technology Designed for carbon filters and long duct runs Detachable motor housing for maintenance Performance Specifications Duct Size: 8 Inch Airflow: 807 CFM Noise Level: 39 dBA Dimensions: 8.5 x 11.9 x 9.2 in Bearings: Dual Ball Bearing Precision Speed Control The included controller provides ten selectable speed settings, allowing precise airflow adjustment depending on room size and equipment load. The PWM motor control allows extremely smooth operation even at low RPM, eliminating humming and vibration commonly found in traditional fans. Backup memory automatically restores the last speed setting after power interruptions, ensuring consistent environmental control. Quiet & Energy Efficient Design The mixed-flow impeller combines stator blades with hydrodynamic wind circles to maintain airflow even when used with restrictive ducting or carbon filters. This makes the fan ideal for ventilation systems with high static pressure. Dual ball bearings rated up to 67,000 hours allow installation in any orientation. The IP44 rated housing resists moisture and dust, making it suitable for humid growing environments. Applications This high-performance inline extraction fan is commonly used for: Large hydroponic grow room ventilation Large grow tent air extraction Fresh air intake and circulation systems Cooling equipment rooms and cabinets Attic and bathroom extraction Heat transfer between rooms Control Temperature and Airflow Create a stable environment and maintain optimal growing conditions with this powerful inline fan from Holland Horticulture.