The fine dust measuring device can be used in various areas. It measures both particle and mass concentration. A fine dust measuring device is employed wherever there may be a potential health risk from fine dust. This includes pollution from combustion, manufacturing, energy production, vehicle engine emissions, and pollution generated by the construction industry. In addition to particle counting, the fine dust measuring device also offers the capability to determine mass concentration. Thus, in addition to PM2.5 and PM10, it can also measure particle sizes of 0.3, 0.5, 1.0, 2.5, 5.0, and 10 µm. Additionally, the fine dust measuring device is equipped with sensors for temperature and relative humidity. Particularly in areas with high traffic volumes, a high level of air pollution can occur. A fine dust measuring device can help reveal these pollution levels. In places where elevated pollution of the breathing air is present, there may be increased risks of respiratory diseases.