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Wildfire Season Has Become a Business Risk Every Facility and CRE Leader Should Plan For in 2026

Wildfire season strains buildings and people. See how facilities can prepare in 2026 to reduce costs, protect tenants, and build resilience.

Ava Montini

Mar 11, 2026

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Wildfire smoke has moved from an environmental concern to a business risk for the built environment. One that affects operations, budgets, tenant trust, and even asset value. Smoke does not stay confined to forests. It drifts hundreds of kilometers into cities, infiltrates through HVAC intakes, window gaps, and loading docks, and turns buildings into frontline defense systems for the people inside them.


For facility managers, this shift reframes wildfire smoke as a predictable operational stress event, on par with a winter storm, a power outage, or a heat wave. For CRE executives, it reframes it as a reputational and financial challenge; one that determines tenant satisfaction, energy costs, and the long-term resilience of portfolios.


The Business Side of Smoke Days

When wildfire smoke drifts into a region, the strain on buildings is both immediate and multi-layered. Filters load faster, pushing fans to use more power just to keep airflow steady (EPA). As systems deviate, alarms trigger more frequently, and maintenance teams are pulled from planned tasks into reactive changeouts (Facility Executive). Meanwhile, vendors across the region see surging demand; parts and pads that usually arrive in days might take a week or more (NC State). That delay alone can unravel even the most rigorously planned preventive maintenance schedules.


Inside the building, occupants feel a different side of the same event. They note scratchy throats, irritated eyes, or rooms that feel stale or “heavier” when fresh air intake is reduced (AirNow). They see Air Quality Index alerts on their phones and news headlines escalating (EPA AQI). In those moments, the question is no longer just whether systems are responding, it’s: Is the building protecting me? When communication is missing or unclear, perception can trump technical measures, tipping the balance from confidence to complaints (BOMA).


Why It Matters More in 2026

The stakes are rising. Multiple studies show that during wildfire events, indoor air can reach one-third to three-quarters of outdoor particulate concentrations in buildings lacking robust mitigation (PMC). Residential buildings in fire-affected areas have shown infiltration ratios reflective of this risk (PMC). In some wildfire-impacted care environments, indoor concentrations have peaked near 200 µg/m³ (NCBI). In contrast, well-configured filtration systems often reduce that exposure to roughly 43% of outdoor levels, showing how effectively mitigation can work (NCCEH).


The human health impacts are significant. Fine particulate matter (PM₂.₅) is linked to asthma flare-ups, reduced lung function, and cardiovascular stress (EPA). Sensitive populations (children, older adults, and those with pre-existing conditions) are most at risk (CDC). However, research also shows that even healthy adults are not immune to short-term exposure (PubMed). Harvard-led studies estimate that wildfire smoke has caused over 15,000 premature deaths in the U.S. in recent decades, with an associated economic burden of $160 billion (Harvard). For employers and property leaders, this translates into absenteeism, healthcare costs, and measurable productivity loss (National Bureau of Economic Research).


At the same time, smoke is a mechanical stressor. It accelerates filter clogging, pushes fans outside their normal operating range, and drives up energy consumption (ScienceDirect). Facility executives consistently report higher unplanned maintenance costs during wildfire season, along with shortened asset life for critical HVAC equipment (Facility Executive). Viewed at scale, these costs ripple upward into operational budgets and capital planning, making smoke days not just a maintenance issue but a financial liability.


What Smoke Events Do to Commercial HVAC Systems


Wildfire smoke can be seen as just “dirty air", but to get deeper, it is a dense mix of ultrafine particles, ash, organic compounds, and combustion byproducts that behave differently from typical urban pollution.


When these particles enter HVAC systems, three operational challenges occur simultaneously:


  • Rapid filter loading and front loading: Fine smoke particles quickly accumulate on the front face of filter media rather than distributing evenly through the depth of the filter. This “front loading” effect increases resistance to airflow much faster than normal particulate loading.

  • Fan energy increases: As pressure across the filter bank rises, fans must work harder to maintain airflow.

  • Airflow imbalance: Systems designed for stable pressure conditions may struggle to maintain balanced ventilation across zones.


During heavy smoke events, these mechanical effects can compound quickly. What begins as a minor filtration issue can cascade into comfort complaints, airflow deviations, and unexpected service calls.


Rethinking Preparedness

Preparedness today requires more than having spare filters in storage. Facilities that treat smoke season as part of their risk portfolio are proving more resilient. Research shows that buildings operating with lower baseline pressure drops have more headroom when smoke events occur, allowing systems to maintain airflow without tipping into alarm states (ScienceDirect). Forward-looking teams also map their most critical zones (like labs, classrooms, care units, or executive suites) and prioritize them during smoke events, an approach recommended in EPA guidance for schools and commercial buildings (EPA).


Another resilience factor is vendor readiness. Case studies after the 2020 smoke season showed that supply chain bottlenecks caused delays of days to weeks in replacing filters and components, leaving unprepared facilities exposed (NC State). Facilities that negotiated priority contracts in advance were able to maintain schedules even during regional demand surges. Similarly, using AQI forecasts and on-site PM₂.₅ sensors has been shown to improve response times; by acting early, facilities reduce exposure and minimize tenant complaints (PMC).


Wildfire readiness also intersects with broader sustainability and ESG commitments. Poor indoor air quality during smoke events undermines health-related certifications like WELL and LEED, while higher fan energy use increases a building’s carbon footprint (USGBC; IWBI). Integrating smoke resilience into ESG strategies provides measurable benefits for investors and stakeholders while demonstrating a proactive approach to tenant wellness.


Three Questions Facility Leaders Should Ask Before Smoke Season


Forward-looking facility teams increasingly treat wildfire smoke the same way they treat winter storms or heat waves: as a seasonal operational risk.


Before wildfire season begins, three questions can help identify vulnerabilities:


1. How much airflow headroom does the HVAC system have?

Buildings operating near maximum pressure limits may struggle when filters load rapidly during smoke events.


2. Are replacement filters and components secured in advance?

Regional smoke events often trigger sudden demand spikes, delaying shipments and increasing costs.


3. Are response protocols clearly defined?

Teams should know when to increase filtration, adjust outdoor air intake, and communicate with tenants.


Facilities that answer these questions early often respond faster and maintain better building performance during smoke days.


The Bottom Line

Facilities without strong preparedness can see indoor pollutant levels rise to 75% of outdoor concentrations during wildfire events, while prepared buildings cut that exposure nearly in half (NCCEH). Harvard-led analyses estimate that wildfire smoke causes tens of billions of dollars in annual economic damage, largely through absenteeism and healthcare costs (Harvard). From a mechanical standpoint, smoke accelerates filter clogging, forces fans to operate at higher energy use, and shortens asset lifespan, driving up costs across operations and capital planning (Facility Executive).


The buildings that are prepared today will reduce alarms, complaints, and unplanned expenses tomorrow, while earning the trust of the people inside. Tenants will remember which buildings felt steady, cared for, and resilient when the outside air was anything but.

How Air Quality Can Affect Your Happiness

  • Writer: Jennifer Crowley
    Jennifer Crowley
  • Jun 29, 2023
  • 4 min read

Updated: Jul 9, 2024

Young woman with long brown hair outside happily breathing in the fresh air
The negative impacts of poor air quality are significant and widely recognized, as they can directly affect health, cognitive performance, and labour productivity.

Air pollution is a problem that affects millions of people around the world, and its effects extend far beyond just physical health. There is growing evidence to suggest that air pollution can also have adverse effects on mental and emotional health.


Air pollution and its impact on mental health is a growing concern that cannot be ignored. Emerging research links exposure to environmental pollutants, including sources from air pollution, to increased prevalence and/or severity of mental disorders. Understanding the relationship between air pollution and mental health is a significant public health concern, given that 99% of the world’s population lives in environments that do not meet World Health Organization air quality guidelines.


The Science Behind Happiness

Happiness is a fundamental part of our well-being. It is a state of mind characterized by positive emotions, contentment, and a sense of fulfillment. Research has shown that happiness is not just a subjective feeling but also impacts physical and emotional health.


Happy people tend to have better cardiovascular health and a more robust immune system and are more likely to live longer. In addition, happiness has been linked to lower levels of stress, anxiety, and depression.


The science of happiness has led to the development of positive psychology, a field dedicated to studying and promoting happiness and well-being. Theorists and researchers in the field have sought to identify the elements of a good life. They have also proposed and tested practices for improving life satisfaction and well-being.


Air Quality and Happiness

The negative impacts of poor air quality are significant and widely recognized, as they can directly affect health, cognitive performance, and labour productivity. For example, the link between air pollution, infant mortality, and respiratory diseases is well-established. According to the World Health Organization, around 7 million deaths are attributed to air pollution annually.


Anxiety and depression are the most common mental disorders across the globe and can increase an individual’s risk of suicide attempts and completion, adversely affecting family and social relationships.


A 2020 study in Toronto, Canada, validated this link between air pollution and emergency room visits for mental health symptoms. Looking at 83,985 emergency room visits for people aged 8-24 between April 2004 and December 2015, researchers found that increases in PM2.5, ozone, and nitrogen dioxide were all associated with increased emergency room visits, sometimes up to 5 days after initial exposure to that pollutant.


Another example published in Nature Human Behaviour comes from China. Analyzing data from 144 Chinese cities, they found that self-reported happiness was significantly lower on days with relatively higher pollution levels.


Poor air quality can also have physical health effects that can indirectly impact mental and emotional health. For example, respiratory problems, heart disease, and other physical ailments can cause stress, anxiety, and other mental health problems.


The Relationship Between Clean Air and Happiness

One factor that comes into play regarding air quality is geographical location. People who live in areas with high levels of air pollution are more likely to experience health problems and decreased happiness levels. For instance, people living near refineries are exposed to more nickel and vanadium, while those near coal-fired power plants breathe particles with higher sulphate content. Neighbourhoods along busy roads have more nitrates from vehicle exhaust.


The climate also plays a significant role in air quality. The interaction between pollution and climate change will impose an additional “climate penalty” for hundreds of millions of people, according to a new report from the World Meteorological Organization (WMO). The areas predicted to be most impacted by climate change, primarily located in Asia, are inhabited by approximately 25% of the global population. These regions may experience an intensification of surface ozone pollution events, resulting in adverse physical and mental health consequences for hundreds of millions of individuals.


The Importance of Prioritizing Air Quality

Given the significance of the problem, policymakers must prioritize air quality in their decision-making. This means supporting initiatives that reduce pollution, such as renewable energy projects and developing regulations that promote clean air. It also means supporting research into the effects of air pollution on mental health and finding ways to raise public awareness about the issue.


Studies propose that air pollutants, such as NH3, NOx, NMVOCs, SOx, CO2, and PM 2.5, may affect life satisfaction, happiness, or optimism. This suggests that environmental policies focused on reducing air pollution will not only positively impact the health of future generations but, at the same time, will increase the present individual’s quality of life.


Improve IAQ to Increase Happiness

A survey commissioned by the Building Engineering Services Association (BESA)reports that almost 70% of office workers believe poor air quality in their workplace harms their day-to-day productivity and well-being.


Research shows people who regularly breathe polluted air experience changes within the brain regions that control emotions. As a result, they may be more likely to develop anxiety and depression than those who breathe cleaner air. It has also been proven that those who breathe fresh air are less stressed than those who breathe polluted air, proving the theory that good air quality and happiness go hand in hand. The more fresh air you get, the more oxygen you intake, which increases the serotonin (the happy hormone) you inhale, consequently making you happier.


In conclusion, air quality is essential to our overall well-being, and policymakers and individuals must prioritize it accordingly. Clean air contributes to our physical and emotional health, and reducing air pollution can have significant economic and social benefits. By working together to support clean air initiatives, we can create healthier, more sustainable communities and happier individuals.

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