Indoor air quality can often be much lower than outside air. Using ventilation to dilute contaminants, filtration, and source control are the primary methods for improving indoor air quality in most buildings.
Sustainable design is focused on making buildings greener, which includes using healthier, less polluting and more resource-efficient practices. Indoor environmental quality (IEQ) refers to the quality of the air and environment inside buildings, including temperature, relative humidity, light, sound and other factors.
Indoor Air Quality is improved through two methods:
- Source Identification. Identifying the source (upfit) or potential source (new construction) of contamination or pollution
- Ventilation Improving ventilation through diulution processes, displacement ventilation which introduces air flow low in a space and relies on thermal forces to transport low air upwards and good filtration or cleaning systems.







