Demand controlled ventilation
Ventilation is a power-intensive process, regardless of whether the air must be heated, cooled or simply exchanged. With demand controlled ventilation it is possible to exchange the minimum amount of air, but still have perfect indoor air quality. Heating and cooling of buildings is one of the most power-intensive activities in most modern countries. Reducing the load in this direction is not just a money saving or an improvement in living quality, but also a contribution to a reduction in to national power requirements and pollution caused by power generating stations.
Positive effects of carbon dioxide
Carbon dioxide is essential for plant growth and supplementing the carbon dioxide level in greenhouses is one good method to increase yields without resorting to high levels of artificial fertilizers. These methods are used in many countries where greenhouses are essential to increase the length of the growing season.
Sick building syndrome
The causes of sick building syndrome, and indeed its very existence, were unknown for many years until it was traced to improved sealing of buildings and consequent high levels of carbon dioxide. The effects are not just limited to a basic feeling of wellness, but the high level of carbon dioxide will also be accompanied by a high humidity in the air and walls, leading to fungal growth and other related problems.