The Vevor register booster fan is designed to improve airflow from your HVAC system through standard 6 x 12" wall or floor vents. It features a programmable LCD controller with temperature sensing to automatically adjust airflow for better comfort. A handheld remote lets you control speed and modes from across the room. Its quiet PWM motor and adjustable speed settings make it suitable for both daytime use and nighttime operation. The white aluminum design offers a clean look that blends into home interiors.