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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.

Do Air Purifiers Help with Dust?

  • Writer: Jennifer Crowley
    Jennifer Crowley
  • Jul 30, 2023
  • 3 min read

Updated: Jul 9, 2024

Blurry image of a woman in the background, with a thick ray of dust in the foreground
High-Efficiency Particulate Air (HEPA) filters effectively remove small particles from the air, including dust, pollen, and pet dander.

Dust is common in all indoor spaces; you’ll find it in your office, home, and almost every building you enter. But just because it’s common, it does not mean we should ignore its potentially harmful effects on our health. Let’s take a closer look a what dust is, its health effects and how we can improve our indoor air quality by better managing dust.


Sources of Dust

We must understand what’s in the air we breathe, as dust can come from various sources in the indoor environment.

Some of the most common sources of dust include:

  1. Outdoor Pollutants: Pollen, dirt, and other outdoor pollutants can easily make their way into our homes through open windows, doors, and ventilation systems. In areas with high pollution levels, these outdoor particles can be a major source of indoor dust.

  2. Human and Pet Dander: Skin cells, hair, and other organic matter shed by humans and pets can contribute to dust in the indoor environment. Even if you don’t have pets, your own skin cells and hair can add to the amount of dust in your home.

  3. Pollen: Pollen from plants can enter our homes through open windows and doors, as well as on our clothing and shoes. If you suffer from allergies, this can be a significant source of indoor dust, exacerbating your symptoms.

  4. Everyday Products: Cleaning products and air fresheners can release chemicals and particles into the air that contribute to indoor dust. These products can include volatile organic compounds (VOCs) that can have adverse health effects when inhaled.


Dust Mites

Dust mites are tiny arachnids (not insects) commonly found in household dust. They are microscopic and cannot be seen with the naked eye. Dust mites feed on dead skin cells shed by humans and animals, which are commonly found in household dust. They thrive in warm and humid environments, making bedding, upholstered furniture, and carpeting ideal habitats. Dust mites are not harmful to most people, but some may experience allergic reactions to their waste products, which can cause symptoms such as sneezing, a runny nose, and itchy eyes.

Here are some additional facts about dust in indoor spaces:

  1. An average person sheds 1.5 grams of skin flakes daily, which may not seem like a lot, but that’s enough to feed a million dust mites.

  2. The excrement of dust mites is recognized as a significant indoor allergen that can trigger allergic reactions and asthma symptoms in people.

  3. Roughly four out of five homes in the United States have detectable dust mite allergen levels in at least one bed.


Health Effects

Inhaling dust can have various negative health effects, particularly for those with allergies, asthma, or other respiratory problems. Dust particles can be small enough to enter the lungs and cause irritation and inflammation, leading to various respiratory symptoms.

Here are some of the specific health effects associated with inhaling dust:

  1. Allergies: Dust is a common allergen and can trigger allergic reactions in some people. Symptoms of dust allergies can include sneezing, itchy or watery eyes, a runny nose, and congestion. In some cases, dust allergies can even trigger asthma symptoms.

  2. Asthma: Inhaling dust can trigger asthma attacks in people with asthma. Asthma is a chronic respiratory condition characterized by inflammation of the airways, which can lead to symptoms such as wheezing, coughing, and difficulty breathing.

  3. Respiratory Problems: Inhaling dust can also cause other respiratory problems, such as bronchitis, pneumonia, and chronic obstructive pulmonary disease (COPD).


Dust Management

There are several ways to manage dust in the indoor environment. Here are some tips:

  1. Regular Cleaning: Regular cleaning is one of the most effective ways to manage dust accumulation. This includes vacuuming carpets and furniture, dusting surfaces, and wiping down counters and floors.

  2. Vacuuming: Use a vacuum cleaner to remove dust from carpets and upholstery effectively.

  3. Dusting: Use a damp or microfiber cloth to dust surfaces, which helps trap dust instead of spreading it around.

  4. Air Purifying: Consider using an air purifier with a HEPA filter to remove dust particles from the air.

  5. Changing HVAC Filters: Regularly changing HVAC filters prevents dust and debris from accumulating on the filter, ensuring the HVAC system is performing effectively.


Can Air Purifiers Help With Dust?

Blade Air's HEPA Air Purifier sitting in the hall outside an office boardroom
The Blade Air HEPA air purifiers remove dust, and also use an active carbon filter to absorb unwanted odours, VOCs and organic compounds, creating that crisp, fresh air feel.

High-efficiency particulate Air (HEPA) filters effectively remove small particles from the air, including dust, pollen, and pet dander.


A true HEPA filter is rated to capture particles at 0.3 microns in size with 99.97% efficiency, but it can also capture much larger and smaller particles. Although an air purifier can help with dust, it cannot remove particles altogether; with regular use, it can provide a significant reduction in household dust.


The Blade Air HEPA air purifiers go a step further by incorporating an active carbon filter to absorb unwanted odours, VOCs and organic compounds, creating that crisp, fresh air feel. Engineered to maximize clean air delivery rates, our air purifiers feature a comprehensive multi-stage filtration process to ensure a completely clean air environment in any deployed indoor setting.

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