Vallox heat recovery units with open panels on the PSIW stand

Photo: Mariusz Młynarczyk / CloudAir.tech

Vallox heat recovery units with service panels removed show their heat exchangers at the stand of the Polish Association of Ventilation Installers. Counters read "VALLOX HOME of FRESH AIR Partner PSIW", while the white and blue wall lists aims such as "Rozwój branży wentylacyjnej" and "Popularyzacja dobrych praktyk wykonawczych". Visitors talk at the counter.