How do we ventilate?

Ventilation moves outdoor air into a building or a room, and distributes the air within the building or room.

We need air

We need ventilation in buildings and it must satisfy several different criteria.

It must be reliable, flexible, well-functioning and adaptable.

And above all, it mus be responsive to different needs and unusual events.

Ventilation needs to be provided for both people and buildings.

How ventilation works?

There are several ways to bring fresh air into the buildings. Ventilation can be natural (relies on natural forces), mechanical (using mechanical equipment) or hybrid, also known as mixed-mode (a combination of the previous two).

Do you know?

Do you know that natural ventilation is historically the most widely used ventiation in residential and other types of buildings?

Today, buildings have modern windows that are airtight and efficient, so natural ventilation (via infiltration) is limited to only small amounts of air exchange and natural ventilation (via airing/windows opening) often takes too much effort for building occupants.

Mechanical ventilation is very complex

Mechanical ventilation the intentional and typically controlled introduction of outdoor air into an indoor space.

Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants, i.e. polluting contaminants from building and everything inside.

It is also used to control indoor temperature, humidity, and air motion to benefit thermal comfort & satisfaction of buildings´ living inhabitants — people, animals and plants.

Under the principle of the human right to health, everyone has the right to breathe healthy indoor air.

The Right to Healthy Air, World Health Organisation, 2000