Analysis of Indoor Air Pollution by CO and VOC in a Smart Building

The article analyses the changes over time of two parameters (CO and VOC) measured by a new indoor air pollution sensor. For this research, measurement data gathered from a selected indoor room over a four-week period were used. The measurements were divided into four different stages. Stage 1: The ventilation system in the investigated room was operational, while the complex air treatment device was not. Stage 2: Neither the ventilation system nor the complex air treatment device was functioning in the room. Stage 3: The complex air treatment device was operational, and the ventilation system was also working. Stage 4: Both the complex air treatment device and the ventilation system were operational in the room. Additionally, due to the quarantine announced in Lithuania during the COVID-19 pandemic, employees were not present in the workplace. The study determines the interdependence of the parameters recorded by the air pollution sensor and how they change over time.