Crowded Östberg stand with HERU IQ heat recovery wall and duct fan tower

Photo: Mariusz Młynarczyk / CloudAir.tech

Groups of visitors fill the red-carpeted Östberg stand, gathering at high tables between grey box fans displayed on the left and a tower of circular duct fans on the right. A white wall branded HERU IQ shows a screen about residential villas and heat recovery units at the back of the stand.