Nicotra Gebhardt COPRA THD plug fan with green inlet ring

Photo: Mariusz Młynarczyk / CloudAir.tech

Two Nicotra Gebhardt plug fans in open steel frames stand on white plinths lit with vertical light strips, the right one labelled "COPRA THD" with a green inlet ring. A staff member points out the impeller to a visitor, while other visitors walk along the neighbouring aisle.