Low-Cost IoT-based Indoor Air Quality Monitoring

Indoor air quality (IAQ) is gaining significant interest as an essential determinant of human health, productivity, and well-being, necessitating the development of environmental sensing systems with cost-effective air-quality monitoring setups. In this article, we report on our ongoing research addressing the problem of limited access to affordable IAQ monitoring solutions. We aim to design, develop, and prototype a small, low-cost IAQ monitoring system that could serve as an Internet-of-Things (IoT)-based network for sensors for building postoccupancy evaluation. In this endeavor, we constructed a stationary multisensing device capable of real-time monitoring and visualization of six IAQ indicators with the potential to connect to similar devices in the built environment. Additionally, we explore the integration of the IoT to store, visualize, and analyze the data.