The VIVOSUN R8 Inline Fan is an 8-inch duct fan supplied with a stepless variable speed controller for precise airflow management in grow tents and other ventilation setups. It is rated at 720 CFM (about 1,223 m³/h) with a maximum fan speed of 2,450 RPM, and operates on 110–120 V power drawing approximately 190 W and 1.6 A. The lightweight plastic housing and impeller aid low-noise operation and easy handling. Installation features include removable duct ends with locking tabs, an included mounting bracket that indicates airflow direction, and a 5.9‑ft power cord. Maximum ambient operating temperature is 40°C (104°F). The 8-inch size is commonly matched with 8-inch carbon filters and ducting for odor control and temperature management in small to mid-sized grow spaces.