12 in. Utility Blower Extractor Fan. 520 Watt and 16 ft. PVC Ducting and 3300 RPM Motor Speed. This 12 in. utility blower extractor fan is used for intake or exhaust, depending on which end the hose is connected to (intake or outtake). 2295 CFM / 3900 m³/h large air volume, 3300 RPM motor speed, and a 16 ft. flexible PVC ducting can provide high working efficiency and directional airflow to limited access areas. It is the ideal ventilation fan for factories, basements, shipyards, farms, grain storage, warehouse, kitchen, office, workshops, tobacco, tunnel, automobile manufacturing, and more places requiring ventilation.12 in. Utility Blower Extractor Fan. Color: Orange.