Factors that are examined span>
Indoor air quality is a complex matter, since each new problem case quite different factors may play a role.
The professionals in this area have four agreed factors that are always first examined in detail.
- Source
There is a source of pollutants, or discomfort in the building, in the area or within the mechanical systems of the building.
- Ventilation
The ventilation system is not able to eliminate existing pollution and / or to guarantee thermal comfort. A space temperature and humidity is assumed to be thermal comfort here that are pleasant for most residents.
- Pollutant pathways
One or more paths connect the source of the pollutants with the fields of the residents and there is a driving force that moves the contaminants in these ways.
- Resident
There are residents express concerns about indoor air quality.
Methods
For determination of the room air quality different methods are used:
- air samples are collected,
- observed extent to which people are exposed to pollutants,
- one takes samples of the building surface,
- it can be used to track the flow of air within the building computer models.