Why Ventilation Should Not Be an Afterthought for Healthy Air in Classrooms
Why ventilation should not be an afterthought for healthy air in classrooms
Children spend up to 30 hours a week in classrooms – a space that profoundly affects their health and learning performance. Recent research in Switzerland shows that good ventilation is essential for a healthy learning environment. The results underline the importance of continuous, mechanical ventilation like that of AerosFair to reduce harmful substances and keep the indoor climate under control.
Poor air quality, major consequences
The study examined 24 primary schools, some equipped with mechanical ventilation and others relying solely on natural ventilation through windows. The measurements showed:
- CO₂ concentrations were on average 20–30% lower in classrooms with mechanical ventilation.
- Volatile Organic Compounds (VOCs), such as formaldehyde and ethanol – often from cleaning products and furniture – were also significantly lower in ventilated spaces.
- Fine dust (PM2.5) was also better regulated in buildings with active ventilation.
These substances are not harmless. High concentrations of CO₂ can lead to reduced concentration and fatigue. VOCs are linked to respiratory problems and irritations. Fine dust has proven adverse effects on lungs and the immune system, especially in children.
Seasonal influences and behavior
A striking finding was that natural ventilation often falls short in winter. Due to cold or energy saving measures, windows remained closed, leading to rising CO₂ values and deteriorated air quality. Even behavior such as opening windows more often proved to be temporarily influenced by awareness, but offered no structural solution.
Continuity is crucial
What this research makes clear: good ventilation requires continuity, independent of the season or human behavior. Mechanical systems ensure consistent air exchange, even when it’s freezing outside or when there is less attention to air quality. It offers schools peace of mind and certainty.
AerosFair meets this need
At AerosFair, we develop ventilation systems that work autonomously, silently, and energy-efficiently, even when the room is empty. Our technology detects occupancy, adapts to seasonal influences, and guarantees healthy air quality without depending on manual intervention.
Conclusion
Good air quality is not a luxury, but a prerequisite for health and learning performance. Mechanical ventilation makes the difference, and with solutions like AerosFair, schools choose not only for technology, but for care, continuity, and future-oriented health.
