Flexzion Inline Duct Fan Booster - (6 Inch, 280 CFM) Exhaust Blower Vent Air Extractor Ventilation System HVAC Low Noise Quiet Operation with Aluminum Blade & Grounded Power Cord Upgraded Advantages - The well-constructed balanced blades designed for long service life & quiet operation; Portable and lightweight and equipped with 5.9' grounded power cord Ventilation Spec - Airflow 280 CFM, Power 42W, Voltage 120V/110V, Speed 2900 RPM; Overall Dimensions: 6" (Diameter) X 7" (Length) Household Applications - This versatile Inline Duct Fan is designed to exhaust and intake stale air through ventilating ducts; Helps boosting airflow for HVAC units; Perfect for bathrooms, workshops, basements and attics and more Grow Room Applications - Use it as intake fan and bring fresh air into grow rooms or tents; Can be used as an exhaust fan in smaller set ups Functional & Friendly Design - Comes with galvanized steel sheet housing and dual crimped flanges on both sides to hook-up with duct easily; Solves air delivery problems without major system rework or expense