Impact of Air Infiltration on IAQ and Ventilation Efficiency in Higher Educational Classrooms in Spain

Indoor air quality (IAQ) in educational buildings is a key element of the students’ well-being and academic performance. Window-opening behavior infiltration, generally used as sole ventilation sources existing buildings, often lead to unhealthy levels indoor pollutants energy waste. This paper evaluates conditions natural classrooms order study how climate affect For that purpose, impact infiltration both on IAQ efficiency was evaluated two university with Continental area Spain. The research methodology based site sensors analyze parameters such CO2, Total Volatile Organic Compounds (TVOC), Particulate Matter (PM), other for week during cold season. Airtightness then assessed within close built environment by means pressurization tests, rates were estimated. obtained results set up Computational Fluid Dynamics (CFD) model evaluate age local value. revealed cannot rely only and, therefore, specific controlled strategies should be implemented improve avoid excessive loss.