Energy consumption for ventilation
An example of annual energy consumption for classroom ventilation
A typical consequence of inadequate ventilation is that the relative humidity increases, with the possibility of mould forming in the building as a result. Substances that are harmful to humans and animals are found in mould spores.
You need to air out – but in the right way. Decentralised ventilation with heat recovery ensures that nothing is left to chance. A decentralised ventilation unit, which automatically adjusts the supply of fresh air to each room, ensures an economically sound indoor climate.
Not all buildings have a good indoor climate, and this is often due to the fact that there is too much moisture in the building at the same time as a high level of off-gassing and little or no ventilation. This can have both health and financial implications.
For the building, it can mean dry rot and fungus in the structures, which ultimately may destroy the building – and the consequences for occupants can be asthma and allergies if it is allowed to develop.
An increasing number of people are being diagnosed with asthma and allergies, and part of the cause is a poor indoor climate.
The result is clear. Without ventilation, the CO2 level rises to 2000 ppm in the space of a single lesson.
Considering how many hours we spend in day-care, educational institutions and at work, this result is both thought provoking and disturbing.
CO2 readings taken in a traditional classroom at Gl. Hasseris School clearly show how crucial good ventilation is to air quality. The blue line shows the CO2 level with an Airmaster unit in operation. The red line shows readings taken in the same room without ventilation.
At 400–1000 ppm, the CO2 level is normal in a room with a good supply of fresh air.
At 1000–2000 ppm, you will typically feel sleepy and have difficulty concentrating.
At 2000–5000 ppm, you will typically have a headache and feel sleepy and generally uncomfortable.
At 5000 ppm or more, there is a risk of passing out due to CO2 poisoning.
Using the “energy calculator”, you can calculate the annual energy consumption of the Airmaster ventilation unit