DELTA DC ventilation fan, the VFB21 Series, adopts brushless DC motors to achieve energy savings and quiet operation. With a mounting hole dimension of 210 x 210 mm, the fan offers dual-speed and humidity-sensing models, allowing selection based on indoor space requirements.
● Suitable room size: 10~20 m²
● Mounting hole dimensions: 210 x 210 mm
● VFB21AXT3: dual airflow, maximum at 126 m³/h
● VFB21AXT4: dual airflow, maximum at 150 m³/h
● VFB21ABHT3: humidity-sensing model, airflow at 126m³ /h