Low-Cost IoT IAQ System

Indoor air quality 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 post-occupancy evaluation. In this endeavor, we constructed a stationary multi-sensing 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 Internet of Things (IoT) to store, visualize, and analyze the data.