Occupant-Centered Indoor Air Quality Monitoring: Cross-Platform Communication

Abstract

The importance of indoor air quality (IAQ) has gained increasing attention, yet user friendly monitoring solutions remain limited. Although sensor-based monitoring can provide real time measurements, monitoring alone does not ensure building quality if occupant feedback is not handled consistently and does not lead to visible resolution. The objective of this final year project was to design and implement a two-way communication workflow between stakeholders and occupants, and to demonstrate that effective mutual communication is as essential as sensor-based measurements in indoor air quality monitoring. The project was carried out for IIsy as part of improving communication transparency between building stakeholders and occupants. The implementation used modern web technologies including React and TypeScript on the frontend, and Java with Spring Boot on the back end. The workflow connects Feelis, an occupant facing application accessed via a QR code for submitting anonymous indoor air quality feedback, and FreesiCloud, a stakeholder facing application used to monitor conditions and handle incoming feedback and building issues through operational workflows. The study used surveys and questionnaires to capture user needs and expectations. In addition, relevant literature was reviewed to understand the current state of IAQ monitoring solutions and their limitations, and to position the contribution of the project in a broader context. Due to limited access to end users in a startup environment, questionnaire findings were treated as directional input and complemented with post release workflow evidence from production use.