Ventilation is important !

The Problem:

Today's modern housing has rightly concentrated on preventing the various sources of heat loss from the home by introducing better insulation, double glazing and draught-proofing.

Black Mould Growth

Coziness, however, has brought other problems to our homes. Reduced ventilation means the internal airflow is negligible, which causes a build-up of water vapour and stale air.
This can lead to black mould growth which not only damages internal decoration and attacks the fabric of the building itself, but is also harmful to humans.

Mould and house dust mites are contributory causes of asthma and allergies.
In poorly ventilated houses, indoor air is contaminated not only by unpleasant odours from pets, cooking or tobacco smoke, but also by dangerous gases such as formaldehyde and radon.

Open the windows ?

Opening the windows every 2 hours for 5 minutes might solve these problems, but it is hardly practical. Natural air infiltration can result in excessive ventilation rates that increase energy consumption for space heating and cause discomfort to occupants because of cold draughts.
In addition, pollen, noise and dust enter the house along with the fresh air.

The answer:

Controlled Ventilation by inVENTer