How indoor air quality monitoring systems work

More and more businesses, schools, hospitals, and other public or private institutions are paying close attention to monitoring indoor air quality. People are increasingly aware of how pollution affects health and well-being, not just outdoors, but also inside buildings.

That’s why many organizations are turning to technology that can monitor key environmental parameters continuously and reliably, both indoors and outdoors.

In this article, we’ll focus on how air quality sensors work, how monitoring takes place, and what tangible benefits organizations can expect when they choose to implement these systems in their spaces.

Why monitoring indoor air quality matters

We spend up to 90% of our time inside buildings (at home, in schools, offices, or hospitals). Yet the air we breathe indoors can be two to five times more polluted than outdoor air. This invisible but very real condition has a real impact on people’s health, productivity, and overall well-being.

According to the World Health Organization, the combined effects of outdoor and indoor air pollution cause around 7 million premature deaths every year. 

Inside buildings, air can become polluted not only by outdoor sources like road traffic, but also by indoor ones: building materials, furniture, cleaning products, electronic devices, and everyday activities.

Without continuous monitoring, it’s hard to detect harmful substances such as fine particulate matter (PM), volatile organic compounds (VOCs), or carbon dioxide (CO₂). 

These pollutants build up easily in poorly ventilated spaces and are linked to respiratory issues, cardiovascular problems, fatigue, reduced focus, and—in more serious cases—chronic diseases.

Poor indoor air quality can directly affect cognitive performance and reduce productivity at school or work. On the other hand, well-monitored environments help improve concentration, comfort, and health.

Monitoring indoor air quality means taking action to prevent risks, protect people, and enhance indoor spaces. It’s a strategic choice for any organization that wants to create safe, efficient, and truly people-centered environments.

monitoring indoor air quality

How indoor air quality monitoring systems work

But how can we keep track of environmental parameters we can’t see or directly perceive? Indoor air quality monitoring systems rely on specialized sensors designed to detect, in real time, the presence and concentration of specific substances in the air. These sensors form the technological core of the systems and use different physical principles depending on the type of pollutant being measured.

For example, to measure carbon dioxide (CO₂), systems typically use non-dispersive infrared (NDIR) sensors, which detect how much light the gas absorbs. To monitor airborne particulate matter (PM1, PM2.5, PM10), they use laser-based sensors that estimate particle size and concentration by analyzing how light scatters.

The sensors either process the data locally or transmit it via wireless connection to a cloud platform. This setup enables continuous, remote air quality monitoring. The system can compare real-time values to predefined thresholds to quickly identify risks, anomalies, or conditions that require action.

What sets Aircare’s indoor air quality monitoring systems apart

Not all air quality monitoring systems are created equal. Aircare systems are designed to deliver 360° indoor air quality monitoring that’s accurate, accessible, and superior in technical and functional features.

They don’t just measure air quality—they provide a fully integrated solution to manage indoor well-being continuously and comprehensively.

One of the big differentiators is the high number of parameters monitored simultaneously. Aircare devices can detect up to 12 distinct metrics across air quality, environmental comfort, and electromagnetic pollution, offering far broader coverage than standard indoor air quality sensors.

In addition to major pollutants, Aircare systems also monitor temperature, humidity, atmospheric pressure, and light levels. This integrated approach gives users a complete picture of the indoor microclimate.

Measurement reliability is backed by metrological validation from an accredited laboratory—something many other systems lack. This ensures maximum data accuracy and allows organizations to use the results in professional contexts that require scientific or regulatory certification.

Another standout feature is the ability to access real-time data through an intuitive digital platform. Users can view environmental indicators, set custom alert thresholds, and receive automatic notifications when values exceed limits—features frequently absent or underdeveloped in other systems.

The platform also allows users to generate detailed, customizable reports. These reports support periodic checks, communication with technical stakeholders, and documentation for certifications such as WELL and LEED, offering clear added value to any organization.

Finally, Aircare devices are designed for fast, simple, and discreet installation, overcoming a common challenge with other systems that often require invasive work or structural modifications.

aircare monitoring system features

Where Aircare sensors can be installed

Aircare’s indoor air quality monitoring systems easily adapt to a wide range of building types, thanks to their flexibility, quick installation, and ability to continuously track key parameters that impact health and well-being.

They’re well suited for offices, hospitals, schools, universities, and industrial facilities—sectors where air quality monitoring is becoming an increasingly strategic priority.

Air quality monitoring in offices

Aircare sensors help maintain high levels of comfort inside office environments, optimize ventilation based on real-time environmental data, and support ESG and sustainability goals.

Aircare systems can be installed in spaces of any size—from single offices to large and complex headquarters—offering scalable and customizable indoor air quality monitoring.

Air quality sensors for hospitals

In healthcare settings, the air quality is critical for both patients and staff. Aircare systems provide high-precision data that support strict contaminant control and help implement advanced hygiene protocols.

Air quality monitoring in universities and schools

In schools and universities, Aircare sensors enable continuous indoor air quality monitoring in classrooms, labs, and shared spaces.

These systems integrate seamlessly into institutional energy governance and sustainability reporting, helping create healthier, higher-performing learning environments.

Air quality sensors for industrial sites

In industrial facilities, Aircare systems accurately detect pollutants such as fine dust (PM), volatile organic compounds (VOCs), and carbon dioxide (CO₂). They actively support worker health and safety while helping companies meet increasingly strict environmental regulations.

How to access and use Aircare monitoring data

Aircare air quality sensors connect to a dedicated digital platform, accessible from any device. Once installed, the system automatically transmits real-time data to an online dashboard where users can monitor all environmental parameters at a glance.

The platform makes data analysis simple through dynamic charts, intuitive visual indicators, and easy time-based comparisons. Users can track air quality trends by hour, day, or week, spot anomalies or peaks, and evaluate the effectiveness of corrective actions.

Beyond real-time visualization, the platform allows users to set custom alert thresholds for each monitored parameter. If a value exceeds the set limit, the system sends automatic notifications via email or SMS, enabling fast, targeted interventions.

Another key advantage is the ability to integrate Aircare systems with building management platforms and existing HVAC systems. This makes air quality data an operational tool for intelligently managing ventilation, improving energy efficiency, and ensuring optimal comfort for occupants.

The platform also includes advanced automated reporting features. Users can generate detailed reports to support internal audits, environmental certifications, or communication with stakeholders and regulatory authorities.

With all these integrated features, Aircare turns raw data into a strategic asset, helping organizations manage their spaces more consciously, reduce health risks, and continuously improve indoor environmental quality.

Types of pollutants monitored by Aircare sensors

Aircare systems are designed for continuous and precise indoor air quality monitoring. They detect key parameters that determine the quality of air in enclosed spaces.

In addition to identifying the presence of pollutants, they provide real-time, reliable data that helps improve people’s health and overall well-being.

So, what are the pollutants that can make indoor air harmful? Here’s an overview of the pollutants Aircare sensors monitor—and why it’s important to track them.

Particulate Matter (PM)

Particulate matter consists of tiny solid or liquid particles suspended in the air. Aircare systems monitor three main categories of PM:

  • PM10 – particles that remain in the upper respiratory tract
  • PM2.5 – finer particles that can reach deep into the lungs
  • PM1 – ultrafine particles small enough to enter the bloodstream

These particles can be of natural origin or result from human activity. Common sources include road traffic, home heating, cooking, office printers, and fine dust from outdoor air.

Long-term exposure to particulate matter can cause inflammation and increase the risk of respiratory and cardiovascular diseases.

Carbon Dioxide (CO₂)

Carbon dioxide (CO₂) is a key indicator of ventilation quality in indoor spaces. While not toxic at low concentrations, high levels—typically above 1,000–1,200 ppm—signal poor air exchange and can lead to symptoms such as drowsiness, reduced focus, headaches, and lower productivity.

Aircare sensors measure CO₂ levels in real time, helping organizations manage ventilation more intelligently while also improving energy efficiency.

Volatile Organic Compounds (VOCs)

Volatile Organic Compounds (VOCs) are chemical substances released by paints, furniture, cleaning products, printers, and building materials. Some VOCs—such as formaldehyde and benzene—are classified as potentially carcinogenic.

Above certain concentration thresholds, these compounds can pose health risks, especially in poorly ventilated indoor environments.

Monitoring VOCs is essential for quickly identifying elevated levels and taking corrective action. Aircare devices continuously track Total Volatile Organic Compounds (TVOC), providing an immediate and reliable indication of indoor air quality.

Temperature and Relative Humidity

Temperature and humidity are even critical environmental parameters. Temperatures that are too high or too low can negatively impact comfort and well-being.

High humidity allows mold and bacteria to grow, while low humidity dries out and irritates the mucous membranes.

Aircare sensors monitor both values to support a fully integrated approach to indoor environmental management, ensuring optimal conditions for health and comfort.

Beyond pollutants: additional parameters monitored by Aircare sensors

Aircare sensors go beyond traditional air quality monitoring. In addition to detecting the presence and concentration of atmospheric pollutants, these devices also measure key parameters that affect comfort, safety, and well-being in indoor spaces.

Effective monitoring of indoor air quality means considering not just pollutants, but all the elements that influence comfort and well-being.

Atmospheric Pressure

While not a direct indicator of pollution, atmospheric pressure significantly affects thermal comfort and natural air exchange with the outside.

By tracking this parameter, Aircare sensors can better manage the indoor microclimate and help optimize overall environmental conditions.

Ambient Light

Aircare monitoring systems also measure ambient light, an essential factor in assessing whether spaces are properly lit during working hours. Proper lighting plays a key role in visual comfort and productivity, especially in offices, schools, and other workspaces.

Sound Pressure

Completing the picture of indoor environmental quality, some Aircare models include sound pressure monitoring, which tracks ambient noise levels.

Constant exposure to background noise—even at moderate intensity—can lead to stress, fatigue, and difficulty concentrating.

Monitoring and managing this parameter helps create healthier, more comfortable spaces for everyday life and work.

Monitor your indoor air quality: choose the best

Indoor air quality monitoring is no longer optional, but a real necessity for any organization that wants to ensure safe, healthy, and high-performing spaces.

Aircare air quality sensors turn invisible data into clear, actionable insights through advanced solutions.

With certified accuracy, easy installation, and an intuitive digital platform, these systems enable you to:

  • Prevent health issues linked to poor air quality
  • Optimize HVAC energy consumption
  • Support environmental certification processes
  • Enhance occupant productivity and well-being
  • Demonstrate a tangible commitment to sustainability

Today’s technology makes air quality monitoring accessible for every company, from small businesses to large industrial facilities, from office spaces to healthcare environments.

It’s no longer just an investment in the future—it’s a responsible choice for the present.

To learn more about Aircare’s air quality monitoring systems, get in touch with us. We’ll be happy to show you how our solutions can help you improve indoor air quality in your spaces.