Visitors around a large Unical boiler in the hydrogen area

Photo: Mariusz Młynarczyk / CloudAir.tech

Visitors gather around a large black Unical boiler with an access ladder and railing on top, set on black carpet edged with blue stripes. The ceiling canopy above repeats "HYDROGEN" around a large H symbol, and a dark "MC Unical Masterclass" booth stands further along the stand.