Smart Indoor Co2 Control Global Market Report 2025

The smart indoor Co₂ control market size has grown rapidly in recent years. It will grow from $2.52 billion in 2024 to $2.83 billion in 2025 at a compound annual growth rate (CAGR) of 12.5%. The growth in the historic period was driven by the expansion of the global smart home market, rising adoption of smart cities and urban surveillance initiatives, increasing demand for energy-efficient solutions in commercial buildings, growth in the residential sector driven by health-conscious consumers, and expansion of the educational sector focusing on healthy learning environments.

The smart indoor Co₂ control market size is expected to see rapid growth in the next few years. It will grow to $4.48 billion in 2029 at a compound annual growth rate (CAGR) of 12.2%. The growth in the forecast period is driven by increasing awareness of indoor air quality, growing concerns over respiratory health, rising demand for healthier indoor environments, focus on wellness-driven building designs and green certifications, and growing popularity of air quality meters in residential settings. Key trends in the forecast period include advancements in non-dispersive infrared sensors, integration of CO₂ sensors with Internet of Things platforms, development of wireless and battery-powered sensor modules, use of machine learning for predictive indoor air quality analytics, and advancements in sensor miniaturization and affordability.

The increasing prevalence of respiratory illnesses is expected to drive the growth of the smart indoor CO₂ control market. Respiratory illnesses affect the lungs, airways, and throat, leading to difficulties in breathing. The rise in such conditions is linked to air pollution, which causes inflammation, reduces lung function, and heightens the risk of infections. Smart indoor CO₂ control systems are effective in addressing respiratory issues by maintaining optimal indoor air quality. These systems help minimize the accumulation of pollutants and allergens that can trigger respiratory symptoms and exacerbate conditions such as asthma and bronchitis. For example, in October 2024, the World Health Organization (WHO) reported that approximately 8.2 million individuals were newly diagnosed with tuberculosis in 2023, up from 7.5 million in 2022. As a result, the rise in respiratory illnesses is driving the demand for smart indoor CO₂ control systems.

Companies in the smart indoor CO₂ control market are focusing on developing advanced solutions, such as environmental sensors, to continuously monitor and ensure indoor air quality. These sensors are designed to detect harmful changes in environmental conditions, ensuring safety and regulatory compliance. For example, in April 2025, Axis Communications, a Sweden-based technology company, introduced the AXIS D6210 and AXIS D6310 Air Quality Sensors. These sensors are specifically designed to monitor indoor air quality, detecting activities such as vaping and smoking, as well as various air pollutants such as particulate matter, volatile organic compounds, nitrogen oxides, and carbon dioxide. They also measure environmental factors such as humidity and temperature, providing comprehensive monitoring of indoor air quality.

In January 2025, WellStat, a US-based software company, acquired Iknaia Limited for an undisclosed sum. The acquisition enables WellStat’s customers to benefit from Iknaia’s advanced Airscan monitoring solutions, while Iknaia’s clients can access WellStat’s energy optimization tools to reduce emissions, lower costs, and improve environmental quality. Iknaia Limited, a UK-based manufacturer, specializes in smart indoor air quality systems designed to monitor and control CO₂ levels.

Major players in the smart indoor Co₂ control market are Siemens AG, Thermo Fisher Scientific Inc., Schneider Electric SE, Honeywell International Inc., ABB Ltd., Johnson Controls International Plc, Carrier Global Corporation, Trane Technologies Plc, Delta Electronics Inc., Legrand SA, Vaisala Oyj, Amphenol Advanced Sensors, Figaro Engineering Inc., Rotronic AG, Awair Inc., Airthings AS, Senseair AB, E+E Elektronik GmbH, Edinburgh Sensors Ltd., and CO2Meter Inc.

North America was the largest region in the smart indoor Co₂ control market in 2024. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in smart indoor Co₂ control report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East and Africa.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

The rapid rise in U.S. tariffs and the subsequent trade frictions in spring 2025 are having a major impact on the electrical and electronics sector, with semiconductors, display panels, and rare-earth metals (essential for batteries and motors) subject to steep duties. Consumer electronics brands face profit erosion, as competitive markets limit their ability to pass costs to buyers. Industrial electronics manufacturers, meanwhile, grapple with delayed projects due to shortages of tariff-impacted components like printed circuit boards. Companies are responding by relocating assembly to tariff-exempt countries, increasing inventory buffers, and redesigning products to reduce dependency on restricted materials.

The smart indoor Co₂ control market research report is one of a series of new reports that provides smart indoor Co₂ control market statistics, including smart indoor Co₂ control industry global market size, regional shares, competitors with a smart indoor Co₂ control market share, detailed smart indoor Co₂ control market segments, market trends and opportunities, and any further data you may need to thrive in the smart indoor Co₂ control industry. This smart indoor Co₂ control market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

Smart indoor carbon dioxide (CO₂) control is an intelligent system that continuously monitors and regulates carbon dioxide levels in indoor spaces. It uses sensors to detect CO₂ concentrations and automatically adjusts ventilation or air treatment processes to maintain healthy air quality. By leveraging real-time data analysis and automated control strategies, the system ensures an optimal balance between air freshness and energy efficiency.

The primary product types of smart indoor CO₂ control include standalone CO₂ controllers, integrated CO₂ monitoring systems, smart thermostats with CO₂ sensors, and others. Standalone CO₂ controllers are independent devices specifically designed to monitor and regulate CO₂ levels in indoor environments. These devices can be wired or wireless and are distributed through both online and offline channels. They are applied in residential, commercial, industrial, educational, and healthcare settings and are used by multiple end-users, including homeowners, building managers, facility operators, and others.

The countries covered in the smart indoor Co₂ control market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The smart indoor Co₂ control market consists of sales of air quality meters, air purifiers, dehumidifiers, humidifiers, and air curtains. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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