Yellow impeller of a Ruck inline fan with roof fan and bar behind

Photo: Mariusz Młynarczyk / CloudAir.tech

Low-angle close-up of a Ruck inline duct fan, its yellow impeller blades filling the lower right of the frame. A smaller black inline fan and a stainless roof fan sit on the podium behind, while the yellow bar counter and the column lettered "ETAMASTE..." frame the stand at Fiera Milano.