PUBLISHER: Fortune Business Insights Pvt. Ltd. | PRODUCT CODE: 1954738
PUBLISHER: Fortune Business Insights Pvt. Ltd. | PRODUCT CODE: 1954738
The global Indoor Air Quality (IAQ) Monitoring System Market was valued at USD 2.33 billion in 2025. The market is projected to grow from USD 2.47 billion in 2026 to USD 4.32 billion by 2034, registering a CAGR of 7.27% during the forecast period.
North America dominated the global market with a 41.08% share in 2025, with the regional market valued at USD 0.96 billion in 2025.
Market Overview
Indoor Air Quality (IAQ) monitoring systems consist of devices that measure and track pollutants and environmental factors within indoor environments. These systems monitor parameters such as temperature, humidity, carbon dioxide (CO2), volatile organic compounds (VOCs), carbon monoxide (CO), and particulate matter to ensure safe and healthy indoor spaces.
Major industry participants include Honeywell, Thermo Fisher Scientific, Emerson Electric, 3M Company, Siemens AG, Horiba Ltd., and TSI Incorporated.
For instance, Honeywell provides IAQ solutions such as the VESDA Air system and Indoor Air Quality Monitors that help building operators enhance occupant safety and optimize ventilation systems.
Market Dynamics
Market Drivers
Increasing Adoption in Healthcare and Education
Healthcare facilities, hospitals, and clinics require strict air quality standards to prevent airborne infections. Similarly, educational institutions with high occupancy levels demand IAQ systems to ensure safe learning environments. These systems provide real-time alerts, enabling quick adjustments in ventilation and air purification.
Rising contamination from VOCs, dust, CO2, and chemical residues is significantly driving demand in commercial setups.
Market Restraints
Integration Challenges with Existing Infrastructure
A major barrier to adoption is the complexity of integrating IAQ systems with outdated HVAC and building management systems. Older infrastructures often lack compatibility with modern IoT-enabled and real-time monitoring platforms, creating technical and financial challenges for building owners.
Market Opportunities
Growing Health Awareness and Pollution Concerns
Rising global pollution levels and increased awareness of respiratory diseases, asthma, and allergies are accelerating demand. Post-COVID-19 awareness regarding air circulation and ventilation has significantly strengthened the need for IAQ monitoring across residential and commercial buildings.
Market Trends
Increasing Focus on Sustainability
Energy-efficient buildings require optimized ventilation systems to reduce energy consumption while maintaining air quality. IAQ monitoring enhances HVAC efficiency, lowers operational costs, and supports sustainability initiatives across industries.
By Pollutant
By End-User
North America
North America led the market in 2025 with USD 0.96 billion, supported by stringent regulations from agencies such as EPA and OSHA, and strong smart-building adoption. The U.S. remains the dominant country in the region.
Europe
Growth is driven by rising respiratory illnesses, regulatory directives such as the Ambient Air Quality Directive (2008/50/EC), and smart home integration. Post-pandemic awareness further boosted demand.
Asia Pacific
Rapid urbanization, increasing pollution levels, and supportive government initiatives are driving strong growth in countries such as China, India, and Japan. Integration with building automation systems further accelerates adoption.
Latin America
Urban pollution, industrial expansion, and rising awareness about health risks are supporting market expansion, particularly in Brazil.
Middle East & Africa
Steady growth is anticipated due to rapid infrastructure development and construction projects requiring IAQ monitoring systems.
Competitive Landscape and Industry Developments
Key players are expanding through acquisitions and product innovations. In December 2024, CogneSense acquired Sonitus Systems to strengthen environmental monitoring capabilities.
In May 2024, Thermo Fisher Scientific began manufacturing Air Quality Monitoring System analyzers in India.
In September 2022, Honeywell introduced an integrated smoke detection and IAQ monitoring solution.
Companies are focusing on innovation, partnerships, and regional expansion strategies to strengthen their global footprint.
Conclusion
The global Indoor Air Quality Monitoring System market is set for steady growth, increasing from USD 2.33 billion in 2025 to USD 2.47 billion in 2026, and projected to reach USD 4.32 billion by 2034, growing at a CAGR of 7.27%. Rising health awareness, stricter environmental regulations, sustainability initiatives, and expanding smart building infrastructure are key growth drivers. Although integration challenges with legacy systems may restrain adoption, technological advancements and increasing demand for healthier indoor environments are expected to sustain long-term market expansion globally.
Segmentation By Pollutant
By End-User
By Region