Home > United States of America > Consumer > Sustainable living > Ventilation > Ventilation facts

Ventilation facts

Fortunately most houses are built to keep the inside dry and protected, but in our daily life our very best tool to maintain a healthy home is the simplest of all: fresh air. Because of our different activities; washing, sweating, cooking, drying clothes, breathing, we add moisture to the inside air, so that it contains more water than the outside air. The moisture production from a typical family is 10 L water/day. Therefore, it is important to open the windows and air out the generated moisture from our home. And the lower humidity level in our house, the smaller the likelihood of moist-related problems. If we air our homes at least 3 times a day, we actively reduce the risk of problems related to elevated humidity. It's as simple as that.
Most people will argue that the air feels dry inside, especially in the winter, which is not totally wrong. Humidity is relative. The warmer the air is, the more water it can absorb. And in the winter our houses are warmer than the outside air. As a consequence, the relative humidity level of the outside cool air will immediately decrease the moment it enters the house as it is warmed up. That is good for the house. However, soon the air will start absorbing the humidity from all our wet activities and the level of relative humidity in the air will rise again. Before it gets too high again, we simply just have to replace it with new, fresh outside air. Combined with a few routines like putting lids on pots when cooking, drying up the bath after showering etc., it's the easiest and best way to obtain a good and healthy indoor climate.

Did you know?
Poor indoor air reduces our ability to concentrate and could cause mould.



What can you do?
A few daily routines and a little care can have a great effect on the indoor climate.

Learn more