Do plants contribute to a high relative air humidity in offices?
Due to the evaporation from the leaves and the volatilisation from the soil, plants discharge humidity into the air. The amount of humidity that plants discharge into the air is dependent on many factors, for example the type of plant, the concentration of humidity in the soil and the temperature and light conditions. In many buildings, especially during the winter months, the relative air humidity is very low, often less than 30 – 60 percent, which is the recommended humidity degree that produces a feeling of comfort. Rather than feeding the air with enormous amounts of humidity, it is better to use the natural self-regulating adjustment of the air humidity through plants. This means, as soon as the relative air humidity has reached a high degree, the plants reduce their evaporation in order to re-achieve the balance. Plants do not show an adverse effect in cases of a relatively high air humidity, but in the case of low relative air humidity, they can help to achieve a level of air hu
