Visitors inspecting the Refra natural refrigerant unit under leaf canopy

Photo: Mariusz Młynarczyk / CloudAir.tech

Visitors inspect the open end compartment of a Refra unit labelled "Natural Refrigerants" on a blue-carpeted stand. The long white casing shows V-shaped coil bays with insulated piping, a red vessel and three large fans on top, lit in green, while a dark suspended canopy with green leaf graphics hangs above the display.