AC Infinity Airlift S20 - Shutter Exhaust Ventilation Fan 20 Inch + Speed Controller

AC Infinity Airlift S20 Shutter Exhaust Ventilation Fan 20” + Speed Controller Key Features of AC Infinity Airlift S20 Large high-airflow shutter fan for greenhouse, garage, and more ventilation 10-level fan speed controller with PWM technology for precise airflow control Innovative EC motor with PWM control for maximum airflow and reduced energy consumption and noise IP44-rated frame with steel shutters and fan blades to block debris and resist moisture and dust Shutter Exhaust Fan for Large Spaces Improve ventilation in warehouses, greenhouses, garages, and workshops. Controlled by a PWM-driven EC motor, it offers precise fan speed control and integrates with UIS™ smart devices. Precision Fan Speed Control The fan features PWM-controlled EC motor for noise optimization and airflow. Ten-speed options available with a power switch and backup memory for versatile operation. Heavy-Duty Performance Weather-resistant steel shutters, aluminum blades, and an innovative EC motor ensure dura