Visitors inspecting a Centauro R744 CO2 refrigeration rack

Photo: Mariusz Młynarczyk / CloudAir.tech

Visitors examine an open Centauro refrigeration rack marked "R744", with compressors, copper piping and valves visible inside the white cabinet. The unit stands on the white and blue floor of the Centauro stand, with further units and the hall's wooden-clad gallery behind.