Indoor Air Quality Monitoring System Market Size, Share & Industry Analysis, By Pollutant (Chemical, Physical, and Biological), By End-User (Commercial & Residential, Public Infrastructure, Power Generation Plants, Pharmaceutical Industry, and Others), and Regional Forecast, 2025-2032

The global indoor air quality monitoring system market size was valued at USD 2.21 billion in 2024. The market is projected to grow from USD 2.33 billion in 2025 to USD 3.92 billion by 2032, exhibiting a CAGR of 7.74% during the forecast period. North America dominated the global market with a share of 40.72% in 2024.

An indoor air quality (IAQ) monitoring system is a device or set of devices that measures and tracks the levels of pollutants and environmental factors within an indoor space. These systems help assess the air quality and alert users to potential health risks or inefficiencies in ventilation systems.

Honeywell is a global conglomerate offering technologies and solutions to the aerospace, industrial, building, and energy sectors. The company’s Indoor Air Quality IAQ solutions, such as the Indoor Air Quality Monitor and the VESDA Air solution, are designed to help building owners and operators identify potential issues and improve indoor air quality. These systems measure various parameters, including temperature, humidity, and indoor air pollutants, offering insights to enhance building safety and occupant well-being.

MARKET DYNAMICS

MARKET DRIVERS

Increasing Adoption in Commercial Setups such as Healthcare and Education to Support Market Growth

The demand for air quality monitoring systems is experiencing significant growth in facilities such as healthcare, education, and others, driven by the critical need for safe, healthy, and comfortable indoor environments. Hospitals, clinics, and other facilities are required to maintain strict air quality standards to prevent the spread of airborne infections.

Contaminants such as volatile organic compounds, carbon dioxide, dust, chemical residue, etc., can significantly compromise air quality. Education institutes often have high occupancy levels; thus, indoor air quality monitoring systems are crucial in such areas, as they help ensure a healthy learning environment by detecting and alerting to harmful pollutants. By providing real-time data and alerts, these systems enable timely interventions such as adjusting ventilation or triggering air purification, ultimately promoting better student health, focus, and academic performance.

MARKET RESTRAINTS

Integration Challenges with Existing Building Systems Could Hinder Market Expansion

Integrating an indoor air quality monitoring system into existing building infrastructure is one of the significant challenges associated with the market. As buildings age, their heating, ventilation, and air conditioning (HVAC) systems, electrical layouts, and automation platforms often become outdated or incompatible with modern technologies. This presents technical and economic challenges to building owners and facility managers, particularly in residential and commercial sectors. Many of the existing/old infrastructure are equipped with outmoded systems that are not compatible with dynamic, real-time monitoring or sensor integration. Thus, these aspects are anticipated to hinder the global indoor air quality monitoring system market growth.

MARKET OPPORTUNITIES

Growing Health Awareness and Air Quality Concerns to Encourage Market Growth

As global pollution levels rise, there is a growing focus on enhancing indoor air quality to mitigate various health issues, including asthma, allergies, and respiratory diseases. Indoor air quality monitoring systems can detect harmful substances, such as VOCs, CO2, and particulate matter. The awareness around air quality has increased due to COVID-19, highlighting the need for sophisticated indoor air quality monitoring systems in residential and commercial properties.

INDOOR AIR QUALITY MONITORING SYSTEM MARKET TRENDS

Increasing Focus on Sustainability is a Major Market Trend

Various industries' sustainability efforts and the necessity to lower energy expenses have led to the implementation of indoor air quality monitoring systems. In energy-efficient structures, effective ventilation and air filtration systems must be in place to reduce power usage and foster healthier spaces. It has been observed that indoor air quality monitoring systems enhance the efficiency of heating, ventilation, and air conditioning methods, reducing energy use while maintaining a safe indoor environment for health.

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Segmentation Analysis

By Pollutant

Chemical Segment to Dominate Market Due to Widespread Presence of Harmful Gases in Indoor Air

Based on the pollutant, the market is classified into chemical, physical, and biological.

The chemical segment is anticipated to dominate the global indoor air quality monitoring system market share. Indoor air quality monitoring involves assessing the levels of various pollutants, including chemical substances, to determine the air quality within buildings and its impact on occupants. Common chemical pollutants include volatile organic compounds (VOCs), formaldehyde, carbon monoxide (CO), and nitrogen dioxide (NO2).

Biological pollutants, such as bacteria, viruses, mold, and allergens, can significantly impact indoor air quality and human health. Indoor air quality (IAQ) monitoring focuses on assessing the levels of various pollutants, including biological contaminants, to ensure a healthy indoor environment. Managing the humidity level in a house can help reduce the growth of certain biological sources. It is typically advised to maintain a relative humidity between 30 and 50 percent in residential spaces.

By End-User

Commercial & Residential End-User Dominates Market due to Increasing Pollution Level in Indoor Environments

Based on end-user, the market is divided into commercial & residential, public infrastructure, power generation plants, pharmaceutical industry, and others.

The commercial & residential segment dominates the market, as indoor air quality (IAQ) monitoring is crucial for commercial and residential buildings to ensure occupants' healthy and safe environment. It involves using sensors and specialized equipment to detect and track pollutants and conditions, allowing for proactive mitigation of potential health risks and compliance with regulations.

Indoor air quality (IAQ) monitoring is crucial in the pharmaceutical industry to ensure product safety, employee health, and regulatory compliance. It involves assessing and controlling the environment within manufacturing facilities, particularly cleanrooms, to minimize contamination from airborne particles, microorganisms, and other pollutants.

Indoor Air Quality Monitoring System Market Regional Outlook

By region, the market is categorized into North America, Europe, Asia Pacific, Latin America, and the Middle East & Africa.

North America

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North America dominated the market in 2024, driven by growing concerns about indoor pollutants and their impact on health, coupled with increasing adoption of smart homes and IoT-enabled systems. Stringent regulations, such as those enforced by the EPA and OSHA, also play a significant role in driving the indoor air quality monitoring system market growth, particularly in the residential, commercial, and industrial sectors.

The U.S. dominates the market in North America, driven by high health concerns, strict IAQ regulations, and the increasing adoption of smart-home and smart-building infrastructure. Moreover, the commercial and residential sectors in the region are increasingly emphasizing healthy buildings.

Europe

Europe's indoor air quality monitoring market is growing due to rising health awareness, increasing respiratory diseases, stricter government regulations, and the adoption of smart home technologies. The COVID-19 pandemic has also significantly increased the demand for Indoor Air Quality monitoring solutions. The region also enforces strict air quality standards under directives, including the Ambient Air Quality Directive (2008/50/EC). Indoor air quality is increasingly being integrated into building codes, further driving market growth.

Asia Pacific

The Asia Pacific region is experiencing significant growth, owing to rising air pollution levels, increasing health concerns related to indoor air quality, and growing awareness of the impact of IAQ on health and productivity. Furthermore, supportive government initiatives, increased funding, and integrating IAQ monitoring with building automation and energy management systems also contribute to the market expansion.

Latin America

In Latin America, the market is driven by increasing air pollution in urban areas, owing to vehicular emissions and industrial activity, which fuels the demand for monitoring solutions. Increased urbanization, heightened awareness of health risks associated with poor air quality, and the integration of smart technologies encourage market expansion. This growth is further fueled by industrial expansion, particularly in countries such as Brazil, and by government initiatives promoting healthier indoor environments.

Middle East & Africa

The Middle East & Africa market is expected to grow steadily over the forecast period, owing to increased demand for air quality monitoring solutions in public and commercial infrastructure. The Middle East is experiencing rapid urbanization, leading to increased density of residential and commercial buildings, which in turn creates a greater need for IAQ monitoring. Moreover, the ongoing construction boom in the region necessitates the installation of IAQ monitoring systems in new buildings to ensure a healthy indoor environment.

COMPETITIVE LANDSCAPE

Key Industry Players

Awareness Programs and Initiatives to Highlight Need for Air Quality Systems

The market players are acquiring companies to fortify and expand their offerings. For instance, in December 2024, CogneSense acquired Sonitus Systems, a provider of environmental noise, air quality, and vibration monitoring solutions from Hidden Brain, a leading developer of a powerful open IOT platform from sensor to cloud and user application. The acquisition aims at developing cutting-edge tools that enhance safety, efficiency, and sustainability.

LIST OF KEY INDOOR AIR QUALITY MONITORING SYSTEM COMPANIES PROFILED

• Thermo Fisher Scientific (U.S.)
• Emerson Electric (U.S.)
• 3M Company (U.S.)
• Horiba, Ltd. (Japan)
• Siemens AG (Germany)
• RXI Instruments (U.S.)
• Testo (Germany)
• Innovaer Technologies (U.S.)
• Chemtrols (India)
• Honeywell (U.S.)
• Aeroqual (New Zealand)
• TSI Incorporated (U.S.)

KEY INDUSTRY DEVELOPMENTS

• October 2024: Union Minister of State for Science and Technology unveiled Pavana Chitra, India's first airport-based self-powered indoor air quality monitoring facility at Thiruvananthapuram International Airport. The off-grid air quality monitor is powered by indigenous indoor solar cells developed by CSIR-NIIST.
• May 2024: Thermo Fisher Scientific announced the commencement of manufacturing of Air Quality Monitoring System (AQMS) analyzers in India. The analyzers will be engineered, manufactured, and validated at Thermo Fisher’s facility in Nashik, India.
• February 2023: IKEA introduced VINDSTYRKA, a Matter-controlled indoor air quality monitor that enables measuring and monitoring indoor air pollutant levels.
• September 2022: Honeywell introduced a first-of-its-kind solution integrating early warning smoke detection with advanced indoor air quality (IAQ) monitoring. VESDA Air actively samples air to identify trace amounts of smoke and enable early intervention before it disrupts operations.
• March 2022: India-based environment monitoring technology solutions provider, Oizom, introduced AQBot, an industrial-grade, single-parameter air quality monitoring device.  

REPORT COVERAGE

The global indoor air quality monitoring system market report delivers a detailed insight into the market. It focuses on key aspects, such as leading companies in the global market. Besides, it offers insights into the market trends & technology and highlights key industry developments. In addition to the factors above, it encompasses several factors and challenges that contributed to the growth and downfall of the market in recent years.

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Report Scope & Segmentation