Rosenberg product selector screen beside an open fan retrofit demo housing

Photo: Mariusz Młynarczyk / CloudAir.tech

Visitors stand by a white Rosenberg column with a screen showing a grid of fan and ventilation unit types. Beside it, an open demonstration housing with weathered panels holds plug fans, and the red back wall carries the slogan "ALT mach EFFIZIENT" with a "DEUTSCHLAND MACHT'S" badge.