Hydrofarm ACDF4 Active Air 4 Inch Hydroponic Inline Fan with Brackets, 165 CFM

The Hydrofarm Active Air 4-Inch Hydroponic In-line Fan is an excellent tool for providing ventilation and cooling to indoor grow rooms. In-line fans work with other tools, including grow lights, to create a successful growing environment. They help eliminate odors and help with temperature control. This fan circulates air at a rate of 165 cubic feet per minute; as a general rule, it’s advised the air in a grow room recirculate at least once a minute. This in-line fan has a quiet operation and its ceramic-coated metal housing and molded impeller are built to last a long time. Mounting brackets are included so you can install this fan wherever you need it. The fan also is adaptable to other ventilation needs, whether in bathrooms, attics or other spaces.