Air filters for Schools
The headlines about ventilation in schools can only be interpreted in one way: it is not okay. Due to the pandemic, a thorough effort has been made to map the poorly performing schools concerning fresh air. It is very well that this is being addressed since it has an enormous bycatch: better ventilation = better concentration.
Good performance of teachers and students relies on concentration, among other things. Good air quality has a direct influence on promoting concentration, but also productivity. It is of great importance to create a healthy indoor climate.
Since children and young people spend most of their day in school, attention should be paid to the air quality in classrooms. According to research commissioned by the Ministry of Education, over a quarter of the schools leaves ventilation to be desired*. However, at least half a million students and teaching staff are affected by it every day.
Over 600 schools have received a budget from the Ministry in 2021 to improve the indoor climate. The 365 million euros spent on this is almost insignificant compared to the 1,6 billion euros** still needed to provide all schools in the Netherlands with proper ventilation. The schools themselves are primarily responsible for this.
*reporting August 2021
**research by the Ministry of Education
Filter class by intensive use
Regular maintenance of the ventilation system and using filters with the correct filter class means better indoor air quality. For all educational institutions at least filter class ePM1 50% is recommended. These filters are capable of removing fine dust particles from the air.
The desired or recommended indoor air quality and the current outdoor air quality determine the minimum filter class of the filter. Eurovent has developed a system in which different areas are divided into five different SUP classes. According to this system, educational institutions fall into SUP class 2. According to Eurovent, these are areas with permanent occupation. There is only one higher SUP class, which is only mandatory for facilities with very strict requirements.
Once the SUP class is known, it is important to look at the outdoor air quality in the region. Depending on the outdoor air quality, the area is classified as ODA 1, 2, or 3. ODA stands for outdoor air quality. The outside air quality can be determined using an air meter. This table shows the recommended air filter per ODA class.
Measure = to know
The first step towards a healthy indoor climate is monitoring the CO2 values in one room. Since February 2022, CO2 meters are required in all classrooms in primary and secondary schools in the Netherlands. A CO2 meter measures the number of carbon dioxide in the air, expressed in PPM (parts per million). Based on the CO2 values in a room, action can be taken. With a value of 800 or higher, it is necessary to ventilate the room better. With a PPM of 1200 and higher, health problems will arise.
As a company, we are participating in the ‘Leren ventileren’ project. We want to play our part in ensuring healthy generations. Young people spend a considerable amount of time indoors. It is therefore especially important that they have constant access to fresh air. It is a key to their development.
Do you have questions? Marleen will help you with advice.
Send an e-mail or call 040 – 204 54 06.
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