The Vortex 18" Oscillating Wall Fan is a great air moving fan to fit into a grow room or grow tent.
 
Vortex Wall Fan
 
The Vortex Oscillating Wall Fan is a powerful air mover that is quiet whilst on and three-speed settings allowing the user complete control. The Oscillating Fan's 18-inch diameter and 90-degree rotation allow plenty of grow room air movement and this wall fan also features a 30-degree vertical adjustment.