Black Rotor Vent air handling unit with gold bars and award seal

Photo: Mariusz Młynarczyk / CloudAir.tech

A black Rotor Vent air handling unit with round inspection windows stands among scattered prop banknotes, topped with a stack of gold bars. Its panel carries a Ptak Warsaw Expo Excellence Award seal, while cut-out bird silhouettes hang from the truss above the cardboard desert walls of the stand.