Defro counter with opened heat recovery units and black ducts

Photo: Mariusz Młynarczyk / CloudAir.tech

Large white "DEFRO" letters top a dark grey counter wall, in front of which open heat recovery units reveal hexagonal teal heat exchangers. Black insulated ducts link the units, and a black "DEFRO air" panel stands at the front. The "POLSKIE CENTRALE WENTYLACYJNE" cube hangs above a stand crowded with visitors.