Galvanised rectangular duct fan under the IRB label

Photo: Mariusz Młynarczyk / CloudAir.tech

A galvanised steel rectangular duct fan sits on a white plinth below an "IRB" label on a dark grey wall. One open end shows the centrifugal impeller inside, and a white terminal box with cable is mounted on top. The unit is part of the fan display on the Ventia stand.