EFFECTIVE VENTILATION: Powerful blower with a fan speed of 2550 RPM for an air flow of 390 CFM. Moves air through your targetlocation efficiently for optimal ventilationLOW NOISE LEVEL: Durable plastic fan housing and blades for extremely low noise(<37 dB); Variable speed controller for easy fanspeed adjustment.EASY INSTALLATION: Removable duct ends with locking tabs for quick removal and easy maintenance and a cord length of 5.4 feet forhassle free setup.VERSATILE APPLICATIONS: Suitable for industrial, household and horticulture ventilation applications for air clean and temperaturecontrol.NOTE: Comes with an installation bracket indicating the direction of the airflow. Max Ambient Temp is 104℉ / 60℃ Product Description