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The Hidden Cost of Poor Airflow in High-Performance Commercial Buildings

Poor airflow in commercial buildings leads to higher energy bills, reduced indoor air quality, and HVAC wear. Learn how to identify and solv

Ava Montini

Mar 24, 2025

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Why airflow inefficiencies drive up costs, compromise indoor air quality, and create hidden challenges for facility managers


Most commercial and institutional buildings today are designed with performance and efficiency in mind. Energy benchmarks, ESG goals, and occupant well-being are often front and center. But despite those efforts, one critical element of building performance is consistently underdiagnosed: airflow.


Poor airflow can silently affect every corner of your building’s operations — from higher energy consumption and HVAC maintenance costs to reduced indoor air quality (IAQ) and missed sustainability opportunities. It rarely shows up as a red flag on day one, but over time, it chips away at performance in ways that are both measurable and avoidable.


Inefficient Airflow Increases Energy Use — Even in “Efficient” Buildings

In many commercial buildings, HVAC systems account for roughly 30–40% of total energy consumption, according to Natural Resources Canada and ASHRAE. But when airflow is restricted, that percentage can climb significantly.


The most common culprits are high-resistance filters, dirty or aging ductwork, unbalanced systems, or outdated fans. These conditions increase static pressure, which forces HVAC fans to work harder and longer to achieve required airflow levels.


According to a study by the U.S. National Institute of Standards and Technology (NIST), buildings with airflow-related HVAC issues can see energy use increase by up to 30% compared to optimized systems. [1]


Even minor issues can have an outsized impact. A 100,000 sq. ft. office building experiencing elevated fan energy use due to clogged filters or inefficient duct design could face annual utility costs tens of thousands of dollars higher than necessary. For building owners managing multiple sites, that inefficiency compounds quickly.


Airflow and Indoor Air Quality Are Closely Linked


Buildings are dynamic systems, and air quality tends to suffer when airflow is compromised. Insufficient airflow can lead to poor ventilation, uneven air distribution, and pockets of stagnation in rooms or zones. These areas often experience elevated levels of carbon dioxide (CO₂), volatile organic compounds (VOCs), and particulate matter — especially in high-occupancy spaces.


A 2015 study from Harvard’s T.H. Chan School of Public Health found that employees working in well-ventilated buildings performed 61% better on cognitive tasks than those in typical buildings with poor ventilation and air quality. [2]


In schools, researchers have found that students in classrooms with improved ventilation perform better on standardized tests. [3] In healthcare facilities, inadequate air movement can increase the risk of airborne illness transmission.


Common complaints like “stuffy rooms,” temperature inconsistencies, or fatigue can often be traced back to airflow and ventilation issues — even when temperature setpoints and filtration standards are technically being met.


Poor Airflow Wears Down HVAC Systems Faster


Inefficient airflow costs more on your energy bill and accelerates mechanical wear and tear. When fan motors, compressors, and dampers are forced to operate under continuous load, components degrade faster than expected.


This leads to:

  • More frequent repairs and service calls

  • Shortened equipment lifespan

  • Greater downtime and occupant discomfort during peak seasons


A study from the National Air Duct Cleaners Association (NADCA) notes that air distribution restrictions are a key factor in premature HVAC failure and reduced system capacity. [4]


The cost of replacing a rooftop unit, for example, can range from $10,000 to $25,000, depending on building size and complexity — not including indirect costs from temporary system downtime.


Sustainability Targets Can Be Quietly Undermined


Many facilities today are pursuing ESG goals, LEED certification, or local emissions reduction mandates. But airflow inefficiencies can quietly work against those targets by increasing Scope 2 emissions (energy-related emissions) and filter waste.


High-resistance air filters, mainly traditional pleated filters, can contribute to this in two ways:

  1. Increased energy use due to pressure drop

  2. Frequent changeouts, leading to more waste and landfill contribution


According to a 2021 study in Building and Environment, filter pressure drop is one of the most overlooked contributors to unnecessary HVAC energy use — especially when filters are overused or under-maintained. [5]


If a building claims progress in sustainability, it’s important to ensure that filtration and airflow practices align with those claims—both from an energy and waste standpoint.


Missed Opportunities for Incentives and Cost Recovery


One of the lesser-known downsides of inefficient airflow is the lost opportunity to qualify for energy retrofit incentives.


Many utility and government programs across North America offer rebates, grants, or low-interest financing for businesses upgrading HVAC systems, controls, and low-pressure filtration. But to be eligible, buildings often need to demonstrate quantifiable improvements in system performance.


For example, Ontario’s Save on Energy Retrofit Program offers up to 50% of project costs for energy-efficiency upgrades, including those related to ventilation, air handling units, and demand control ventilation systems. [6]


Without data on airflow improvement or energy reduction — or without addressing underlying airflow inefficiencies — buildings may fail to qualify, leaving funding on the table.


Practical Steps to Address Airflow Challenges


The good news is that improving airflow doesn’t require a major capital project. Many impactful changes can be made within existing operations and maintenance cycles.


Here’s where most facilities can start:

  • Conduct a static pressure and airflow assessment to identify bottlenecks

  • Replace high-pressure filters with low-pressure, high-efficiency alternatives

  • Balance and tune your HVAC system, especially if zones have changed due to new usage patterns

  • Install real-time IAQ monitors to detect issues as they emerge, not after complaints arise

  • Track filter changeouts and energy use to capture data for future incentive applications


These strategies are already being implemented in facilities across North America — and in most cases, they deliver measurable improvements in energy efficiency, equipment reliability, and occupant satisfaction.



Airflow may not be the most visible part of your building, but it’s one of the most influential. When ignored, it quietly drives up energy costs, reduces system lifespan, and compromises air quality.


For facility managers and business owners focused on performance, sustainability, and operational clarity, airflow should be on the radar — not just as a maintenance metric but as a lever for long-term efficiency and resilience.


Addressing airflow challenges is a straightforward, high-ROI step that supports healthier, more cost-effective, and future-ready buildings.

Revolutionizing Buildings in 2024: Trends Transforming Indoor Spaces

  • Writer: Ava Montini
    Ava Montini
  • Dec 5, 2024
  • 5 min read

Buildings today are where we live, work, and connect—and they need to do more than just function. In 2024, the focus was on making them efficient, adaptable, and aligned with modern demands like sustainability and occupant health.


For facility managers and building professionals, the challenge is clear: how to improve energy use, meet regulations, and enhance tenant satisfaction—all while staying within budget. Here’s a look at the trends shaping the future of buildings and the technologies driving smarter, healthier, and more resilient spaces.




Sustainability as the Cornerstone of Modern Buildings

Buildings account for approximately 37% of global energy and process-related CO₂ emissions and 34% of global energy demand, underscoring the critical need for sustainable solutions in the built environment. This demand has driven the development and adoption of technologies that address both environmental impact and operational efficiency.


One such area of innovation is low-pressure air filtration systems. These systems are designed to enhance indoor air quality—a critical factor for occupant health—while also minimizing the energy demands of HVAC systems. By reducing the resistance to airflow (known as pressure drop), these advanced filtration technologies can lower energy consumption and contribute to sustainability certifications such as LEED and WELL, which emphasize energy efficiency and healthier indoor spaces.


Traditional HVAC systems, while effective at meeting basic performance needs, often require significant energy input to maintain baseline standards. In comparison, modern sustainable technologies provide a more efficient, cost-effective approach without sacrificing performance. For facility managers, this means an opportunity to align building operations with environmental goals, improve the well-being of occupants, and meet evolving regulatory requirements—all while managing long-term operational costs more effectively.





Smarter Spaces Through Technology

The smart building market is projected to grow from USD 72.6 billion in 2021 to USD 121.6 billion by 2026, driven by the adoption of IoT, AI, and predictive analytics. These technologies are transforming buildings from static structures into responsive ecosystems. For instance, IoT-enabled sensors can monitor air quality in real time, triggering ventilation adjustments to maintain optimal conditions. Predictive analytics allows facility managers to identify and address inefficiencies before they become costly problems, saving both time and resources.


Unlike older systems that rely on periodic manual checks, smart buildings integrate real-time monitoring with adaptive systems, enabling a more proactive approach. Facilities that implement IoT-based predictive maintenance can achieve significant cost savings and operational improvements. According to McKinsey & Company, such approaches can reduce maintenance costs by up to 25%, decrease unplanned outages by up to 50%, and extend the operational life of machinery.


These benefits stem from the ability to monitor equipment health in real time, predict failures before they occur, and schedule maintenance activities more effectively. By leveraging IoT and analytics, organizations not only enhance operational efficiency but also improve tenant satisfaction through increased reliability and reduced downtime.




Wellness-Driven Design

As research continues to reveal the profound impact of indoor air quality (IAQ) on health, wellness-focused design has become a priority. Studies from Harvard T.H. Chan School of Public Health have demonstrated that indoor air quality (IAQ) significantly affects cognitive function. The Global CogFx study, involving 302 office workers across six countries, found that improved IAQ led to better cognitive performance. Additionally, Americans spend approximately 90% of their time indoors, where pollutant levels can be 2 to 5 times higher than outdoor levels. In response, facility managers are investing in biophilic design, thermal comfort enhancements, and advanced filtration systems to create healthier indoor environments.


A shining example of wellness-focused design can be seen in modern office buildings that integrate natural elements and prioritize occupant well-being. Biophilic design—incorporating features like green walls, indoor gardens, and natural lighting—has been shown to reduce stress and boost productivity among employees. Coupled with improved ventilation and thermal comfort systems, these spaces create an environment where occupants feel more energized and connected. One case study found that wellness-certified buildings saw higher employee retention rates and a measurable increase in work satisfaction, emphasizing the value of designing with health and well-being at the forefront. These principles don’t just benefit the occupants—they also enhance the long-term value of the building, making it more attractive to tenants and investors alike.


Preparing for Uncertainty

The past decade has underscored the need for resilience in building systems, particularly in the face of challenges like wildfires, extreme weather events, and fluctuating energy demands. For example, during heatwaves or cold snaps, energy grids are often strained, and buildings with adaptive energy systems—such as smart energy storage or dynamic load management—can maintain functionality while reducing their reliance on peak energy. These systems help ensure consistent performance even when external conditions push infrastructure to its limits.


Proactive strategies like integrating renewable energy sources or implementing predictive energy management also allow buildings to anticipate and mitigate potential disruptions. These approaches not only reduce energy costs but also contribute to a more stable and sustainable grid. As energy resilience becomes increasingly critical, buildings capable of adapting to these demands play a key role in ensuring reliability and sustainability for the broader community.


Data-Driven Operations

Real-time data is transforming building management, offering facility managers tools to optimize energy usage, extend the lifespan of equipment, and enhance overall tenant satisfaction. By integrating predictive maintenance programs, facilities can leverage embedded sensors to monitor equipment performance, identify inefficiencies, and trigger alerts before failures occur. This proactive approach significantly reduces costly repairs and unplanned downtime. Implementing predictive maintenance can reduce maintenance costs by 18% to 25% while increasing asset availability by 5% to 15%, underscoring its role in improving both operational reliability and cost efficiency.


Unlike traditional methods that rely on reactive repairs after a problem arises, data-driven operations provide actionable insights that enable facility managers to anticipate issues before they escalate. This not only improves system performance but also enhances tenant comfort by ensuring seamless building functionality. As more facilities adopt analytics-driven strategies, they unlock measurable benefits, including reduced operational costs, improved system reliability, and higher tenant satisfaction—all essential for maintaining competitive, high-performing spaces in an increasingly dynamic market.




Tenant and Occupant Expectations Evolving

Post-pandemic, expectations for indoor spaces have shifted dramatically. Occupants now demand more than basic functionality—they seek healthier environments, visible sustainability initiatives, and seamless integration of technology that enhances their experience. Facility managers are rising to the challenge by implementing systems that prioritize transparency and well-being. Features like real-time building data and energy-saving dashboards optimize building operations while providing occupants with accessible, actionable insights that build trust and foster loyalty.


This emphasis on occupant-centric upgrades marks a significant departure from traditional facility management, which often prioritized operational efficiency over user experience. By addressing these evolving demands, modern buildings are not only improving tenant satisfaction but also driving higher retention rates and stronger relationships. Tangible improvements—like cleaner air, energy-efficient systems, and clear communication of these efforts—are becoming the new standard for successful facilities, setting them apart in a competitive market.



As 2024 concludes, the built environment is undergoing a profound transformation. Facility managers are no longer just maintaining buildings—they’re shaping them into spaces that align with the needs of people, businesses, and the planet. The trends driving these changes—from sustainable technologies to smart systems and wellness-focused designs—offer immense opportunities for those ready to adapt.

Explore expert insights, stay up to date with industry events, and gain a deeper understanding of the cutting-edge developments that are revolutionizing the indoor air quality landscape within Blade Air's comprehensive Insights Hub.

You can also subscribe to our monthly newsletter below for exclusive early access to Blade's Insights content, uncovering tomorrow's air quality advancements before they hit our Hub.

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