5 tips for a healthy classroom

A healthy classroom means fresh air, improved focus and better learning outcomes. Discover our 5 tips for creating the ideal indoor climate.
A healthy classroom with fresh air, focused pupils and satisfied teachers – it should be obvious, right? Yet studies show that in more than 80% of schools in the Netherlands, indoor air quality is below standard. In at least 11% of classrooms, ventilation is completely inadequate. The consequences? Poor academic performance, concentration problems and increased absenteeism.
Time to take action. But how do you create a truly healthy classroom? Here are 5 practical tips.
1. Classroom ventilation: the foundation of healthy air
A sufficient supply of fresh air and the removal of polluted air are essential for a healthy indoor climate in schools. Without proper ventilation, CO₂ and harmful substances build up quickly. With smart natural ventilation solutions, air quality remains consistently high – without the need to keep windows open all day.
2. Monitoring CO₂ in schools: measure to improve
How can you be sure the air in a classroom is really healthy? The answer is simple: by measuring. CO₂ concentration is a reliable indicator of air quality and should stay below 800 ppm. With a smart CO₂ monitor connected to a demand-controlled ventilation system, fresh air is supplied automatically – only where and when it’s needed. The result: guaranteed comfort and energy savings.
3. Ventilative cooling: keeping classrooms fresh on hot days
Anyone who has ever sat through a lesson on a sweltering summer day knows how difficult it can be. High indoor temperatures lead to restlessness and reduced concentration. Ventilative cooling – introducing large volumes of cool night air into the building – makes smart use of natural conditions. The outcome? Comfortable, fresh classrooms even during hot spells.
5 myths about the importance of ventilative cooling in schools
4. Don’t overlook acoustics and layout
A healthy indoor climate goes beyond air and temperature. Acoustics also play a crucial role. Sound-absorbing materials and a well-thought-out layout reduce disruptive noise and support better focus. The result: a calmer environment that benefits both pupils and teachers.
5. External shading: keeping heat out, comfort in
Large windows bring plenty of light but also allow in unwanted heat. Effective external shading stops the sun before it enters, reducing cooling demand by up to 30%. This keeps classrooms comfortable – without unnecessary energy use.
Conclusion: towards a healthier school environment
Creating a truly healthy indoor climate in schools requires more than simply opening a window. By investing in smart ventilation, CO₂ monitoring and external shading, we can build classrooms where pupils and teachers feel better – and perform better.
Curious to see how this can be applied in your project? DUCO is here to help – whether for renovation or new build.