Indoor air quality has become a topic that building occupants aren’t staying quiet about. From office workers and students to hospital patients and hotel guests, people are paying closer attention to the air they breathe, and they’re raising the issue with the people who manage their buildings. That increased awareness is putting facility leaders in a difficult spot. IAQ is no longer a back-of-house concern.
To help make sense of the challenge, we put together data that captures the scale of the problem and uncovers trends that facility managers, building owners, and operations teams need to understand. The picture that emerges isn't simple. IAQ issues vary widely by building type, occupancy, and geography. However, the patterns are clear enough to act on.
We also look at the regulatory environment, which is tightening in ways that will affect facilities of all kinds in the coming years. Because of the real budget pressures facility leaders face, we've paid particular attention to solutions that can deliver measurable cost savings while also checking all the right boxes for compliance. The goal is to show that investing in air quality doesn't have to mean adding another line item to an already stretched budget. Done right, it can pay for itself, or even reduce budgets.
Before diving into the analysis, here are the numbers that define the current state of commercial building air quality.
The GPS Air 2026 Indoor Air Quality Report, which was conducted in partnership with the third-party survey platform Pollfish in March 2026, surveyed 750 U.S. adults working in non-remote environments, including office, education, healthcare, retail, hospitality, and other public-facing settings. The findings represent some of the most specific, current, first-party data available on how workers perceive and respond to their indoor environments.
Workers are prioritizing air quality over amenities. When asked to choose between a workplace with better amenities and one with fresher, more comfortable air, 61% of workers chose the environment with consistently fresh air. The invisible environment is outranking the visible one.
First impressions are shaped by the air. Before a meeting starts or a laptop opens, employees have already formed a judgment about the space. Fifty-three percent say temperature and airflow are the first things they notice when walking in, setting the tone for their entire day.
Hybrid workers notice the gap most. Workers splitting time between home and office were more likely to strongly agree they notice differences between the two environments that affect their productivity—51% versus 39% for those in the office five or more days per week.
Air quality drives output. Fifty-seven percent of workers say temperature and airflow are the conditions that most influence their productivity at work.
Visible investment earns visible trust. Eighty-three percent of workers say visible efforts to improve workplace comfort and safety would make them feel more respected as an employee. For building operators and employers alike, improving air quality is one of the highest-return signals of organizational care available.
See the full survey findings. Download the 2026 GPS Air IAQ Report
Indoor air quality problems in commercial buildings are widespread across building types and occupancy categories, and they carry measurable consequences for the people inside. The data below is drawn from government research that establishes the scale of the problem.
Indoor concentrations of some pollutants have increased in recent decades due to various factors, including energy-efficient building construction and increased use of synthetic building materials, furnishings, personal care products, pesticides, and household cleaners. Tighter buildings retain more of what is generated inside them. That dynamic plays out in offices, schools, and healthcare settings alike.
These widespread, evolving challenges require a large-scale response. At GPS Air alone, we’ve completed more than 300,000 installations across commercial, educational, and healthcare facilities, backed by ISO 9001:2015 certification.
IAQ has emerged as a major challenge in K-12 facilities, where deferred maintenance budgets and aging HVAC infrastructure compound the problem. The EPA’s Clean Air in Buildings Challenge has emerged as a policy signal that federal attention on this issue is growing, with voluntary commitments from school systems across the country. That policy direction carries practical weight.
The good news is that code-compliant solutions can also be cost-effective ones. A Texas school district designing a new building with 20 classrooms and 11 science labs shifted from a traditional ventilation approach to an ASHRAE 62.1-compliant Indoor Air Quality Procedure (IAQP). In addition to providing verifiable air quality, the design reduced outdoor air requirements by 65-70% and unlocked nearly $400,000 in projected capital savings and an estimated $17,000 to $20,000 in annual energy cost reductions. See the full K-12 IAQP case study.
The return-to-office era has placed commercial building IAQ under greater scrutiny than at any previous point, and employees are paying close attention to how their workplaces responded in the GPS Air 2026 IAQ Report:
For building owners competing for tenants, these expectations have real market implications. LEED (Leadership in Energy and Environmental Design) certification has grown as a tenant retention and attraction strategy, reflecting broader recognition that occupant health and comfort are business drivers, not wellness extras.
The economic case for better indoor air quality is well-established and continues to grow more specific. The tens of billions the EPA estimates is lost yearly reflects the accumulated drag of absenteeism, reduced cognitive performance, and health-related turnover across the commercial building stock.
The GPS Air 2026 survey adds a behavioral dimension to this economic picture. When the environment feels off, workers respond in ways that directly affect organizational morale and output: 20% power through and endure the discomfort, 19% express concerns among coworkers, 18% decide to work from home the next chance they get, and 17% take more frequent breaks. Each of those responses represents a productivity cost, with some being immediate, while others compound over time.
Building owner liability exposure is an additional consideration. As IAQ standards become more codified and occupant awareness grows, the gap between a well-documented IAQ management program and the absence of one carries increasing legal and reputational risk.
The commercial building industry is responding to IAQ pressure with measurable investment in active air purification technology. The needlepoint bipolar ionization (NPBI®) market is one of the fastest-growing air purification technologies in commercial buildings due to its cost effectiveness, ability to work with existing HVAC infrastructure, and energy efficiency. That growth trajectory reflects economic logic as much as health motivation.
Several factors are driving adoption across commercial building categories. Rising energy costs have increased interest in solutions that allow buildings to reduce mechanical ventilation loads while maintaining or improving air quality. This is a tradeoff now formally supported by ASHRAE 62.1-2019 - 2025. Labor shortages across facilities management favor low-maintenance technologies with manageable operational overhead. Integration with building management systems (BMS) has also reduced the management burden associated with active air purification, making adoption more practical for mid-market building operators.
Europe has been the leading adopter region, with regulatory pressure on building emissions and occupant health standards driving earlier and more comprehensive deployment. North American market growth is accelerating in response to evolving ASHRAE guidance and increased occupant and tenant expectations.
For building operators looking to benchmark their facilities against recognized standards, a few key frameworks apply to commercial building IAQ management.
ASHRAE 62.1 is the primary ventilation standard for commercial buildings in the United States. The current version introduced the Indoor Air Quality Procedure (IAQP) as a compliance pathway that allows buildings to reduce mechanical ventilation rates when active air cleaning is verified through monitoring and documentation.
This is a meaningful distinction for building operators managing energy costs. The ASHRAE 62.1 Indoor Air Quality Procedure creates a formal mechanism for trading ventilation volume for verified air cleaning performance. The smartIAQ® platform from GPS Air is designed to enable IAQP compliance by monitoring indoor contaminants, cleaning as needed, and confirming that IAQP design targets are being met. For a full explanation of how IAQP works under ASHRAE 62.1, GPS Air has published a detailed technical overview.
EPA guidance sets the broader policy context. The agency's Clean Air in Buildings Challenge provides a voluntary framework for building operators to commit to and document IAQ improvements.
NIOSH provides occupational health guidance relevant to building operators in healthcare, manufacturing, and other sectors where worker health exposure standards apply alongside general building codes.
Key thresholds that commercial building operators typically monitor include PM2.5 (fine particulate matter) and total volatile organic compounds (TVOCs). Maintaining visibility into these metrics is increasingly a baseline expectation for buildings pursuing WELL certification, LEED operations credits, or ASHRAE IAQP compliance.
Needlepoint bipolar ionization (NPBI) is a relatively newer approach to active air purification in commercial buildings, and the body of third-party research supporting its performance continues to grow. The studies below represent findings that have cleared peer review or independent laboratory validation.
Particle removal performance. Recent research published in Science Direct found that NPBI significantly improves particle removal for particles up to 2.5 µm in size, with the greatest benefit observed for smaller particles, which represents the most significant penetration risk to the respiratory system.
Filter efficiency gains. The same research found that NPBI's impact was particularly notable for lower-MERV filtration systems. When paired with a MERV-8 filter, ionization brought combined efficiency up to the level of a MERV-10 filter. A MERV-10 filter with ionization performed comparably to a MERV-13 filter. For buildings where upgrading filtration infrastructure is cost-prohibitive, that efficiency gain has practical and economic significance.
Airborne virus reduction in real-world conditions. A study conducted in a large, room-size BSL-3 chamber designed to replicate real-world spatial conditions rather than the small enclosures used in most ion research tested NPBI technology against Influenza A and B, Human Respiratory Syncytial Virus (RSV), and the SARS-CoV-2 Alpha and Delta strains. At real-world virus concentrations, NPBI reduced Influenza A and B, RSV, and SARS-CoV-2 Delta by 88.3 to 99.98 percent within 30 minutes. The results support NPBI as a building management strategy for reducing certain airborne respiratory viruses in occupied indoor spaces.
Airborne virus reduction. Testing conducted in large biosafety chambers by Innovative BioAnalysis measured NPBI performance against SARS-CoV-2, Influenza A and B, and RSV. SARS-CoV-2 airborne reduction reached 99.87% within 30 minutes at an average ion density of 3,500 ions per cubic centimeter. Influenza A reached 99.78% reduction at 60 minutes, RSV reached 97.06% reduction at 60 minutes, and Influenza B reached 85.44% reduction at 60 minutes, all tested at approximately 22,000 to 23,000 ions per cubic centimeter. Full test reports are available at gpsair.com/resources/third-party-testing.
Bacterial reduction, antiviral activity, and air quality impact. A study investigating NPBI disinfection efficiency and indoor air quality impact found substantial antibacterial activity across multiple organisms. At peak performance, NPBI achieved 99.8% reduction of Bacillus subtilis, 99.8% reduction of Staphylococcus aureus, 98.8% reduction of Escherichia coli, and 99.4% reduction of Staphylococcus albus, with results sustained through hour four of testing. Surface antiviral activity reached 94% reduction of HCoV-229E (a human coronavirus) after two hours of NPBI operation.
The study also measured whether NPBI operation affected thermal comfort parameters and air pollutant levels. No significant changes were detected in temperature, humidity, pressure, nitrogen dioxide, or volatile organic compounds during NPBI operation.
ASHRAE 241 recommends that building operators select air cleaning devices that meet the UL 2998 standard, the Environmental Claim Validation Procedure for Zero Ozone Emissions from Air Cleaners. This certification provides independent validation that a device does not produce ozone as a byproduct of its operation, a critical consideration when evaluating any ionization-based technology for occupied commercial spaces.
The statistics in this article tell a consistent story. Poor indoor air quality is widespread, its consequences are measurable, and occupant expectations around healthy environments are higher than ever. For building owners and operators, the more pressing question is whether their facilities are among those that need to change course.
The data here provides a starting point for that assessment. Buildings with aging HVAC infrastructure, a history of water damage, or no active air quality monitoring are well-represented in the research above. Identifying where a facility falls short is the first step toward addressing it. The pathway to improvement doesn’t always require the capital investment that building operators fear.
Buildings operating under the ASHRAE IAQP pathway can realize documented savings by reducing mechanical ventilation loads when active air cleaning is verified. See the savings for your building.
GPS Air brings more than 30 patents, ISO 9001:2015 certification, and 300,000-plus installations worldwide to this work. It’s a scale of real-world deployment that reflects both the depth of the IAQ problem in commercial buildings and the market’s growing commitment to addressing it.
With this data, defined standards, and ever-growing occupant expectations, facility operators have the tools to take action. Talk to GPS Air about how your building measures up and what a path to better air quality looks like for your specific facility.