Indoor air resilience: wildfire smoke is creating new demand for IAQ protection services
Wildfires are increasingly recognised not only as an environmental and public health challenge, but also as a growing indoor air quality (IAQ) concern. While smoke events are often associated with outdoor exposure, recent research highlights how fine particulate matter (PM2.5) and other pollutants generated by wildfires can infiltrate buildings, affect indoor environments, and continue to pose risks long after the visible smoke has disappeared.
This evolving understanding is contributing to the emergence of a new market segment focused on indoor air resilience. Building owners, facility managers, schools, healthcare facilities, and households are increasingly looking for solutions that can help protect occupants during smoke events and improve preparedness for future climate-related air quality disruptions.
Recent scientific evidence reinforces the importance of indoor protection measures. A global assessment published in Nature suggests that indoor air purification could deliver substantial health benefits by reducing exposure to PM2.5 from wildfire smoke as well as from other pollution sources. The study highlights the potential role of indoor air cleaning technologies as part of broader public health strategies aimed at reducing the burden of airborne pollution.
At the same time, guidance from the U.S. Environmental Protection Agency (EPA) emphasises that wildfire smoke can enter buildings through ventilation systems, open windows and doors, and small gaps in the building envelope. As a result, indoor spaces are often less protected than occupants may assume. Even when outdoor conditions improve, pollutants that have accumulated indoors may continue to affect air quality. Emerging evidence also draws attention to what happens after a smoke event. A recent review by the National Collaborating Centre for Environmental Health notes that wildfire-related pollutants can deposit on surfaces, accumulate in indoor dust, and be absorbed into building materials. Some of these contaminants may persist for weeks or even months and can later be re-released into indoor air through normal activities or cleaning processes.
These findings are creating new opportunities for technology providers and service companies operating in the IAQ sector. Demand is growing for integrated solutions that combine real-time monitoring, advanced filtration, portable air cleaners, smart building controls, and post-event cleaning protocols. Rather than focusing solely on compliance or routine building management, organisations are increasingly exploring how IAQ solutions can contribute to operational resilience during extreme environmental conditions.
The trend is particularly relevant for schools, offices, healthcare facilities, and other buildings that host vulnerable populations or require continuity of operations. In these settings, maintaining healthy indoor environments during pollution episodes is becoming an important aspect of risk management and occupant wellbeing. As climate-related events become more frequent in many regions, indoor air quality is likely to be viewed not only as a health issue but also as a component of climate adaptation strategies.
For the IAQ market, this shift signals a move from reactive responses towards proactive resilience planning. Technologies and services that help buildings anticipate, withstand, and recover from smoke events are becoming increasingly relevant. As awareness grows, indoor air resilience may emerge as one of the most dynamic areas of innovation and market development within the broader indoor air quality ecosystem.