Poor indoor air quality (IAQ) in scholar environments have been frequently reported as one of the most important factors affecting students' health and academic performance. In an averagesize classroom, concentrations above the recommended CO₂ thresholds are commonly reached during a class. Considering that just in Spain, more than 8 million school-aged children spend approximately 1,300 hours a year inside a classroom like the aforementioned, the state and management of IAQ in scholar environments becomes critical. However, managing IAQ in schools still remains as a unique challenge specially if one wants to solve the difficult dilemma of balancing Indoor Air Quality with Thermal Comfort and Energy Consumption. For this reason, the objective of this communication is to identify characteristic ventilation strategies of educational buildings and carry out a comparative analysis of their operating modes through AHP. And with this, the different ventilation systems are compared and classified according to the most relevant evaluation parameters.