Active Air Inline Booster Fan 10" 661 CFMActive Air Inline Booster Fan 10" 661 cfm Enjoy a portable way to cool off, wherever you need it. Bring the chill inside to your grow room, kitchen, or other warm areas with the Active Air In Line Booster Fan. The fan props up on its own and can work as a standalone or may be mounted in line with your existing duct work to increase airflow. Active Air fans are quiet running, made with UL recognized components, and include an 8', 120v power cord. The