“…During winter temperature ranged between 19 and 26 °C and relative humidity between 50 and 60 %, during summer temperatures varied from 27 to 35 °C and relative humidity from 40 to 46 %. de Giuli et al (2014) evaluated the indoor environmental comfort, from March to June, in four Italian classrooms by means of spot-measuring campaigns, long-term monitoring, and surveys. The school building were not equipped with a mechanical ventilation system, therefore CO 2 concentrations were extremely high in all the classrooms, and they decreased as hot season approached since the windows were opened more frequently.…”