Carbon dioxide (CO2) indoors
Another indicator of indoor air quality: carbon dioxide (CO2). The odorless gas is a natural component of our air atmosphere. CO2 is not only produced during the combustion of fossil fuels, but also in the body – for example, when you exhale or digest.
Many people are familiar with CO2 as a greenhouse gas in the climate debate. Yet carbon dioxide, as it occurs naturally, is not a culprit per se. On the contrary: CO2 is part of the earth's natural protective cover.
The big problem: Too much CO2 in the air, as caused by human intervention in the natural atmosphere, poses a danger in the long term; temperatures on earth are rising ever faster, the planet is getting hotter.
Too much CO2 is also a problem indoors: In the air we breathe, carbon dioxide is considered hazardous to health. When you breathe, it is combined with oxygen. This means: you breathe in oxygen and exhale carbon dioxide.
In the body, CO2 is therefore a waste product. If the levels are too high indoors, it poses a danger to the body. Possible consequences include: