VIVOSUN 6 in 390 CFM Inline Duct Fan with 6 in Carbon Filter Control

POWERFUL AIR FLOW FAN: Heavy hitting blower with a fan speed of 2550 RPM for an air flow of 390 CFM, Puts out only 37 dB noise level. Moves air through your target location efficiently for optimal ventilation SUPERIOR CARBON FILTER: 1050+ RC 48 Australian Virgin Charcoal Bed. Dimensions: 6 x 18 EFFECTIVE ODOR CONTROL: The carbon filter eliminates some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room.