For Indoor Air Quality (IAQ), international definition (Indoor Air Quality), means the specific indoor air quality in buildings and structures that are characteristic of enclosed or confined. Indoor air quality, in daily life is essential reference to human and animal health. In the context IAQ, microclimate inside the comfort of other denomination at internal microclimate comfort, is determined by the main criteria and values such as reference data:
natural ventilation
internal temperature
humidity
The IAQ may be affected by various types of pollutants and contaminants that interfered with the condition when present at interior, discomfort may create a climate and consequently the negative conditions on human and animal health.