Placed on – October 19, 2022

Monitor indoor air quality with IoT

Better indoor air quality literally makes people better at their jobs.

Did you know that the indoor air of the facilities in which we spend most of our time (e.g., office, school, house and factories) can be 2-5 times more polluted than outside air? This fact makes indoor air quality key in achieving good health and well-being of people throughout their lives.  

According to the World Health Organization, poor indoor air quality is “responsible for the premature death of 6.5 million people every year globally.” Nevertheless, achieving the needed indoor air quality in every room and all the time can be trickier than expected. In that sense, solutions that leverage Internet of Things (IoT) technology are highly effective to manage and achieve good indoor air quality.  

“90% of people’s time is spent indoors, and inside buildings with poor air quality thus affecting their health and productivity.” 

Smart indoor air quality monitoring 

The quality of air within a space is influenced and changes based on several factors including occupancy density, floor area, airflow intake, humidity and outdoor air pollution, among others. In that regard, an IoT-based solution can be used to measure, monitor and manage indoor air quality easier and in real time.  

With an IoT solution, you not only monitor air quality in real time but are able to instantly send that information to other building systems and facility managers to take meaningful action. This includes, for example, automatically adjusting ventilation rates when a condition or situation changes in an area and applying zero-occupancy parameters when a room is out of use to optimize energy usage.  

As such, the benefits of using “smart” indoor air quality solutions are the following:  

  • They help you to improve occupant wellbeing and health.  
  • They help you to detect ventilation anomalies. 
  • And they help you to streamline indoor air quality management to save time, money and resources.  

“Good indoor air quality more than doubles an individual’s cognitive performance; it improves critical thinking, decision-making and facilitates learning.” 

The sensors 

IoT indoor air quality solutions make use of wireless sensors that collect real-time data about key indicators such as: 

  • CO2 and CO. 
  • Temperature and humidity. 
  • Total concentration of Volatile Organic Compounds (VOC). 
  • And particulate matter (especially when 2.5 micrometers or less in diameter). 

Still, the type of sensors used can be customized depending on your specific use case and the metrics that need to be monitored in your facility. In addition, the IoT system can be configured to send alerts and notifications when predetermined thresholds are exceeded, thus giving the possibility to building users, facility managers and maintenance teams to act appropriately and when needed.  


Since improving indoor air quality leads to better health, safety and overall wellbeing of every building occupant, it is worth investing in it. Furthermore, finding the right IoT partner to create the reliable, simple to use and accessible solution you need is key.  

EVALAN is an IoT solutions provider with more than 15 years of experience and a track record of satisfied customers who after using an IoT solution in their business, keep wanting to extend the technology to apply it to new use cases. We develop IoT solutions that are reliable, easy to deploy and easy to install, and are focused on going the extra mile for you. 

“What gets measured, gets managed.” 

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