Indoor air quality (IAQ) analysis: why it’s crucial for health and productivity

Every day, we walk into the office, swipe our badges, boot up our computers, and jump into the first meeting. Everything seems under control: the lights are on, the windows are shut, and the air conditioning system is working just fine. But how often do we stop to think about the air we’re breathing? Indoor air quality (IAQ) analysis in the workplace has a direct impact on our health, focus, and overall well-being—yet it often goes unnoticed. In this article, we’ll explore why indoor air quality should be a top priority for businesses. 

We’ll look at the risks of poor air quality and explain how proper monitoring can boost productivity and day-to-day performance.

Indoor Air Quality Analysis

Why indoor air quality analysis shouldn’t be ignored

Data from the European Commission, the European Ventilation Industry Association (EVIA), and the World Health Organization show that people spend about 90% of their time indoors—in homes, offices, schools, hospitals, and even while commuting.

What’s more, pollutant levels indoors can be up to five times higher than outdoor air. In critical situations, this gap can rise to 100 times.

Despite this, while outdoor air quality has long been monitored and regulated, indoor air quality often gets overlooked—not because it’s less dangerous, but because we don’t perceive it as a threat. People tend to assume that being indoors is automatically safer, when in fact, enclosed spaces can harbor much higher concentrations of invisible pollutants.

To understand the real scope of the issue, we need to know what we’re actually breathing indoors—and what that means for our health.

Indoor pollutants: what’s in the air we breathe?

Enclosed environments often contain dozens of harmful substances, many of them present simultaneously and in significant amounts:

PollutantMain SourcesHealth Effects
PM2.5 / PM10Urban traffic, printers, cooking, smoke, dustRespiratory and cardiovascular problems
Carbon dioxide (CO₂)Human breath, crowded or poorly ventilated spacesFatigue, loss of focus, headaches
Volatile Organic Compounds (VOCs)Paints, glues, furniture, cleaning products, printersIrritations, headaches, neurotoxic effects
FormaldehydeParticle board furniture, treated fabrics, adhesivesIrritations, cancer risk
Molds and bioaerosolsHumidity, leaks, HVAC systemsAllergies, asthma, respiratory infections
Ozone (O₃)Indoor chemical reactions, laser printers, disinfectantsEye and respiratory irritation

Everyday habits that worsen office air quality

You don’t need drastic interventions to improve indoor air quality. In most cases, it’s the small, everyday habits that quietly undermine a healthy work environment. Here are a few common mistakes to avoid:

  • Skipping ventilation in crowded areas: Meeting rooms, open-plan offices, and waiting areas quickly accumulate CO₂ and stale air without proper airflow, reducing focus and increasing the risk of pathogen transmission.
  • Choosing uncertified furniture and materials: Particle board furnishings or chemically treated fabrics can release VOCs over time—even without any noticeable smell—gradually lowering air quality.
  • Ignoring red flags and bad habits: Blocking vents, overlooking unusual odors, or relying on strong air fresheners might seem harmless but can significantly harm the indoor environment.
  • Neglecting awareness: When employees lack basic knowledge, they’re less likely to adopt responsible behaviors. Building awareness is key to fostering a healthier workplace.
office air quality

Smart habits for better indoor air quality

Without monitoring, we can’t know what we’re breathing—or where to take action. Still, there are proactive steps anyone can take to help maintain clean air, prevent pollutant buildup, and support HVAC system performance. Here are a few best practices:

Encourage fresh air circulation where possible

Opening windows for just a few minutes every day helps lower CO₂ levels, humidity, and airborne pollutants. In buildings without operable windows—especially in city centers or those with centralized HVAC systems—mechanical ventilation plays a critical role. Facility managers should regularly adjust airflow rates, monitor HVAC performance, and make sure all systems operate at peak efficiency.

Keep HVAC systems in top condition

Air quality depends heavily on well-maintained systems. Dirty filters, clogged ducts, or poorly calibrated equipment don’t just reduce comfort—they can become contamination sources. Schedule regular maintenance and use high-efficiency filters where possible.

Minimize indoor pollutant sources

Be mindful of what enters the space. Harsh cleaners, unverified furnishings, and high-emission devices like printers can all worsen air quality. Choose low-emission products, isolate printers in separate rooms, and assess the materials used in your workspaces—replacing them when needed.

Raise employee awareness

Many people don’t realize how their actions affect office air. Training staff on simple practices—like keeping vents clear, reporting issues, and avoiding unnecessary sprays—can make a big difference.

How office air impacts productivity and focus

Air quality analysis plays a major role also in mental performance. In offices, where focus, decision-making speed, and clarity are critical, poor air can  gradually reduce productivity.

That’s exactly what the “COGfx” research project by Harvard T.H. Chan School of Public Health found. Conducted with Syracuse University and SUNY Upstate Medical, the study tracked 302 workers across six countries over a year. It measured pollutant levels at workstations (including PM2.5 and CO₂) and tested cognitive performance through daily smartphone assessments.

The results were clear: even moderate increases in indoor pollution led to noticeable cognitive decline. A 10 µg/m³ increase in PM2.5 reduced response speed by up to 0.9% and accuracy by 1.7%. A 500 ppm rise in CO₂ slowed response times by 1.4–1.8% and reduced task performance by 2.1–2.4%.

These numbers may seem small, but add up—especially in high-density or mentally demanding environments. Poor air quality can lead to:

  • Reduced focus
  • More errors
  • Increased mental fatigue
  • Less clarity in complex decisions

And most people don’t even realize it. They’re simply breathing suboptimal air while trying to work.

From afterthought to competitive advantage

As we’ve seen, indoor air quality analysis shapes daily performance, clarity, motivation, and health. Addressing it gives companies a tangible lever to boost productivity and ensure business continuity.

That’s where Aircare comes in. With our smart environmental monitoring platform, we help organizations turn a silent risk into a strategic advantage. Our sensors track key indoor air indicators—like PM2.5, CO₂, VOCs, temperature, and humidity—in real time. We deliver clear, actionable data that integrates easily into management systems.

Companies can then:

  • Ensure safe and healthy workplaces
  • Detect issues early and act quickly
  • Optimize HVAC usage and cut energy waste
  • Feed reliable data into ESG reports and sustainability disclosures

In a time where workplace well-being is more central than ever, investing in indoor air quality isn’t optional—it’s a strategic decision. Aircare provides the tools to make it happen.

Indoor air quality: a concrete asset for ESG Reporting

Monitoring indoor air is also critical for companies pursuing—or planning to pursue—an ESG journey. Environmental and social impact reporting now goes beyond emissions and energy. It also covers the conditions where people work and live every day.

Improving air quality allows organizations to:

  • Show real commitment to employee health and well-being (the “S” in ESG).
  • Support environmental goals through smarter HVAC use and lower energy consumption (the “E”).
  • Provide verifiable data for ESG audits and sustainability reporting (the “G”).

Healthier workplaces also support certifications like WELL and LEED. And with the Corporate Sustainability Reporting Directive (CSRD) coming into force, even small and medium enterprises will soon need to report their environmental and social impact in a structured way.

In this context, having reliable indoor air data offers a clear advantage in meeting new compliance standards.

Aircare supports businesses on this front, too. Our platform tracks key indoor environmental metrics over time and generates automatic reports and intuitive dashboards—fully compatible with existing ESG workflows.

Want to learn more?

Fill out the form on our contact page to learn how we can help you improve indoor air quality. We’d love to show you how our solutions work and how they can benefit your organization.