In 2019, Realdania selected five projects which would share a total of DKK 5 million in funding for the development, testing and documentation of innovative solutions to improve the indoor climate of classrooms.
Airmaster’s VOC (Volatile Organic Compounds) project was selected as one of these projects. VOCs are easily evaporable organic compounds released by cleaning agents, building materials, work processes, cosmetics and human bodily processes, etc. Despite them occurring in very small concentrations in the indoor climate, research has shown that these substances probably play a major role in people’s perception of the air quality, and they have an impact on our mental well-being.
“The projects we have chosen to support are all innovative solutions that can potentially make a big difference to poor indoor climate in classrooms. And all of them need a helping hand to do this. We are now looking forward to getting them out there and tested in schools. We hope that the experience gained from this will give both municipalities and consultants extra tools to assist them in their work involving indoor climate in schools,” says Stig Hessellund, Project Manager at Realdania.
As VOC and CO2 concentrations do not always go together, it may make sense to have a separate control that demand controls ventilation based on the VOC concentration – or better still, based on VOC and CO2 concentration at the same time. The benefit for students and teachers will be that the air replacement is controlled on the basis of several relevant parameters.
This Realdania-funded project will help establish whether it is possible to effectively demand control ventilation according to the concentration of VOCs.
The project has shown positive results in relation to the possibility and relevance of demand controlling ventilation according to the concentration of VOCs. It has, for example, revealed that sudden fluctuations are greater in VOCs than in CO2, placing different demands on ventilation control.
The VOC project is now so far advanced that field tests are being carried out at a school in Aarhus Municipality in collaboration with the Danish Technological Institute. The final fine-tuning is under way before its launch later this year as a new demand control on Airmaster ventilation units.