The Vevor inline duct fan is designed to improve air circulation for grow tents and other indoor ventilation setups. It features a 6-inch EC pure copper motor fan with 402 CFM airflow, 10-speed PWM control, app connectivity, and temperature and humidity monitoring. Its low-noise operation supports continuous use, including overnight ventilation. This fan is suited for indoor gardening, hydroponics, and other small exhaust applications. Please note that ducts, connectors, and hanging straps are sold separately.