The April 2023 issue of INIVE's online monthly newspaper "Energy Efficiency and Indoor Climate in Buildings" with information on the Air Infiltration and Ventilation Centre (AIVC), the building and ductwork airtightness platform (TightVent Europe), the platform fore resilient ventilative cooling (venticool), the Indoor Environmental Quality – Global Alliance (IEQ-GA), the Dynastee network & EU relevant information.