VIVOSUN 6 Inch Portable Desk Clip On Fan for Home a with 2-Speed Whisper Quiet Operation CIRCULATES FRESH AIR: Triple spiral fan blades are angled to deliver efficient airflow with high and low settings to keep you and your plants cool and comfortable QUIET, SECURE UNIT: Sturdy, lightweight mesh exterior protects the fan blades and the fans surroundings from damage. High quality components keep this fan running whisper soft VERSATILE APPLICATIONS: Sturdy, compact fan is ideal for circulating air in grow tents for even temperatures and improved ventilation; classic design is great for home and office use as well FULLY ADJUSTABLE: Fan is simply adjusted by hand to direct air flow exactly where you need it. Unit has exceptional 360-degree horizontal range and 120-degree vertical range CONVENIENT INSTALLATION: Convenient no-slip steel spring clamp grips anything from desk edges to grow tent frames, but fan can also be wall mounted or stand on its anti-skid base