iPower 4 Inch Inline Duct Fan with Variable Speed Controller Ventilation, 200 CFM Quiet Exhaust Blower for Grow Tent and Basements, Black

Powerful Ventilation: This efficient blower with a fan speed of 2500 RPM for an air flow of 200 CFM. Moves air through your target location efficiently for optimal ventilation, effectively circulates air for room ventilation and odor purification.,Adjustable Speed: Have a variable speed controller on the power cord enables the fan to run at different speeds, you can adjust it to desired airflow level according to your requirement.,Quiet: High quality fan blades rotate smoothly and powerfully, which helps to collect airflow volume and reduce noise output; Noise below 30 decibels will not affect your work and life.,Easy Installation: Removable duct ends with locking tabs for quick removal and easy maintenance. Universal mounting bracket for direction of airflow indicating.,Multifunctional: Suitable for industrial, household and horticulture ventilation applications, help you maintain a healthy grow room. Ideal solution for multi-purpose use in residential and commercial ventilation.