Active Air 16" Wall Mount FanDescription Effortless Mounting: This user friendly device offers three adjustable speed settings and provides a 90 degree oscillation, giving you complete control over the airflow in your space. Equipped with two pull chains for effortless speed or direction adjustment, it operates in an impressively quiet fashion. Features: Promotes the growth of healthy plants Prevents the stratification of air in the grow room Smooth and quiet operation ensured 90