Opening a window when the room feels stuffy is like having a drink when you are dehydrated……… Too late, the damage is done.
Prevention is most always better than a cure.
Just like we prevent dehydration by having frequent sips of water, we assist respiration by installing continuous ventilation.
Having a well-designed continuous 24-hour mechanical ventilation strategy is like having frequent sips of pure, fresh water on a hot day. It prevents problems, and provides us with benefits for our health and comfort.
When indoor air starts to smell stale or feel stuffy, it is usually due to a build-up of certain chemicals in the air as well as humidity. The ratio of airborne contaminants to oxygen starts to increase because of a lack of fresh air. These contaminants are mostly biological by-products, such as exhaled carbon dioxide, and microbial volatile organic compounds (MVOCs).
If you are in a building with consistently high carbon dioxide levels, you may notice a general sense that the air is stuffy or stale, sometimes accompanied by drowsiness or fatigue. Some studies have linked chronic MVOC exposure to eye, nose and throat irritation, coughing, wheezing, fatigue, headaches and other symptoms typically associated with sick building syndrome.
Relying on a window to provide adequate fresh air, when it is needed, is unreliable and problematic. A well designed continuous 24-hour mechanical ventilation system on the other hand, provides a safe, healthy, and comfortable living environment.
LESSON: Ventilation is not just an add-on to a good design, it is a ctitical component part.