  The detrimental effects of air pollutants on human health have prompted
increasing concerns regarding indoor air quality (IAQ). The emergence of
digital health interventions and citizen science initiatives has provided new
avenues for raising awareness, improving IAQ, and promoting behavioural
changes. The Technology Acceptance Model (TAM) offers a theoretical framework
to understand user acceptance and adoption of IAQ technology. This paper
presents a case study using the COM-B model and Internet of Things (IoT)
technology to design a human-centred digital visualisation platform, leading to
behavioural changes and improved IAQ. The study also investigates users'
acceptance and adoption of the technology, focusing on their experiences,
expectations, and the impact on IAQ. Integrating IAQ sensing, digital
health-related interventions, citizen science, and the TAM model offers
opportunities to address IAQ challenges, enhance public health, and foster
sustainable indoor environments. The analytical results show that factors such
as human behaviour, indoor activities, and awareness play crucial roles in
shaping IAQ.
