Close view of Bayoung backward-curved impellers with external-rotor motors

Photo: Mariusz Młynarczyk / CloudAir.tech

Aluminium backward-curved impellers with riveted blades and black external-rotor motors fill the frame at the Bayoung Ventilator stand. Behind them, six small compact fans are fixed to a blue panel on the dark grey wall, beneath the white "bayoung VENTILATOR" lettering and a circuit-style line graphic.