Development of a smart air quality monitoring system and its operation

Abstract

Indoor air quality control becomes a critical role in protecting human life due to a significant increase in indoor living time with industrial development. However, air purifier and ventilation systems are installed in many indoor places, and qualities of air are not guaranteed without effective monitoring systems. In this study, we developed a smart indoor air quality monitoring device, measuring components of PM10, PM2.5, PM1, CO, CO2, VOCs, temperature and humidity. The smart air quality monitoring system is commutated with a developed smartphone application using short and long distance communication modules. The smart application basically provides air quality information (daily, monthly, yearly), air management methods, and emerging environmental issues. For the system verification, we tested the developed air quality monitoring system with other reliable measuring devices. As results, the gaps between our developed system and other reliable measuring devices are PM10 (±4%), PM2.5 (±4%), CO (±1%), CO2 (±1%), VOCs (±2%), temperature (±1%) and humidity (±2%). We found that the developed smart air quality monitoring system is sufficiently reliable comparing to other measuring devices. Therefore, the smart air quality monitoring system would help improve indoor air quality in real time and can be used for future air quality prediction.