Atmospheric humidity Have you ever considered how much humidity will be released to the air of the room in one day? Besides the room and potted plants; cooking, showering, bathing and clothes' washing see to it that the air will be well enriched with humidity. Added to this is the breathing and perspiration of people. In the long run, the atmospheric humidity may damage material and health, and cause mould to develop. Regular ventilation is the only way to effectively prevent that from happening.
Room temperature In order to avoid condensation, the room temperature should be kept as constant as possible. A constant room temperature of 21°C and a relative atmospheric humidity of about 40% in the rooms provide healthy living conditions. Moreover this combination hardly ever causes any problems with condensation on the window panes.