Increasingly sophisticated smart buildings are being developed to improve efficiency, reduce costs and make life easier and healthier for residents and business owners alike.

A key element in the development of smart building is the ability to infuse a high degree of intelligence into managing Indoor Air Quality (IAQ). IAQ refers to the air quality within and around buildings and structures, especially as it relates to the health, safety and comfort of building occupants.

As people spend ~90% of time indoors, indoor air quality plays a significant part in their general state of health. The indoor air in our homes, schools, offices and factories can be twice, or even up to five times more polluted than outdoor air. In recent decades, buildings became more and more airtight to be increasingly energy efficient.

This is why air ventilation has a critical role to play in renewing indoor ambient air to constantly remove all kinds of pollutants, most bio-organisms and some gases. CO2 concentration is nowadays one of the most important IAQ parameters to check, because it is the main indicator of the quality of the air renewal rate, called Air Change Rate (ACR).

Unlike VAC, IAQ focuses on the quality of the air inside a room in order to improve the well-being of its occupants. Comfort in terms of temperature, humidity (hygrometry) and even psychrometric parameters such as wet-bulb globe temperature (WBGT) is an important part of IAQ. Sauermann is committed to ensuring the measurement of all these parameters.