Delta's DC ventilation fan - VFB21 Series adopt DC brushless motors to achieve energy saving and quietness. With mounting hole dimension of 210mm x 210mm, the fan has dual-speed and humidity-sensing models, and can be selected based on indoor space requirements.
● Suitable room size: 10~20 m2
● Mounting hole dimensions: 210 x 210 mm
● VFB21AXT3: dual air volumes, maximum at 126 m³/h
● VFB21AXT4: dual air volumes, maximum at 150 m³/h
● VFB21ABHT3: humidity-sensing model, air volume at 126m³ /h