Is your living room or bedroom affected by humidity or bad smell? Improve air quality with an indoor ventilation fan. The fan is equipped with a built-in AC motor, offering high airflow and high speed to quickly enhance air circulation and refresh the room. | Vevor | | 7.5-Inch Room to Room Fan, Through Wall Fan with AC Motor & Bi-directional Adjustable Wind, 180 CFM Ventilation Quiet | Silver | Best Buy