Carbon Dioxide Monitors Market – Global Industry Size, Share, Trends, Opportunity, and Forecast Segmented By Product (Wall-Mounted Carbon Dioxide (CO2) Monitors, Pipeline Carbon Dioxide (CO2) Monitors), By Type (End-Tidal Carbon Dioxide (EtCO2) Monitors, Transcutaneous Carbon Dioxide (tcpCO2) Monitors), By Application (Hospital Use, Scientific Research, Breweries, Greenhouses, Underground Car Parks, Office Buildings, Others), By Region & Competition, 2021-2031F

Forecast Period	2027-2031
Market Size (2025)	USD 875.74 Million
CAGR (2026-2031)	9.65%
Fastest Growing Segment	Transcutaneous Carbon Dioxide (tcpCO2) Monitors
Largest Market	North America
Market Size (2031)	USD 1522.04 Million

Market Overview

The Global Carbon Dioxide Monitors Market will grow from USD 875.74 Million in 2025 to USD 1522.04 Million by 2031 at a 9.65% CAGR. Carbon dioxide monitors are precision electronic devices designed to measure and display the concentration of CO2 within a given environment, serving as critical tools for assessing indoor air quality and ensuring ventilation efficiency. The market is primarily driven by heightened regulatory frameworks and an increasing emphasis on occupational health, particularly as organizations seek to mitigate airborne pathogen transmission and enhance cognitive productivity in commercial spaces. These factors are accelerating the integration of monitoring technology into smart building management systems to optimize energy usage and airflow.

According to ASHRAE, in 2024, the implementation of updated energy standards was projected to yield 9.3% carbon emissions savings, a statistic that underscores the growing necessity for precise monitoring controls in modern infrastructure. Despite this positive momentum, a significant challenge impeding broader market expansion is the susceptibility of lower-cost sensors to calibration drift, which necessitates frequent maintenance and subsequently raises the long-term total cost of ownership for end-users.

Key Market Drivers

Integration of carbon dioxide sensors in smart building automation and HVAC systems serves as a primary market accelerator, fundamentally reshaping energy management strategies. Modern facilities are increasingly utilizing these sensors to implement demand-controlled ventilation (DCV), which adjusts airflow based on real-time occupancy rather than fixed schedules, thereby significantly reducing operational costs while meeting sustainability targets. This technological shift is evidenced by high adoption rates; according to JLL, October 2025, in the '2025 Global Real Estate Technology Survey', environmental sensors and data modeling tools are now adopted by over 80% of large occupiers to drive value in physical workplaces. This widespread integration aligns with broader industry momentum; according to Trane Technologies, October 2025, the company reported record enterprise bookings of $6 billion, reflecting the intense global demand for advanced, sensor-integrated climate control solutions.

A surge in awareness regarding ventilation effectiveness to mitigate airborne pathogen transmission is further propelling the deployment of monitoring solutions across diverse sectors. Following global health concerns, institutional and commercial entities are prioritizing indoor air quality (IAQ) transparency to ensure occupant safety, reduce viral transmission risks, and comply with evolving hygiene standards. This intensified focus on respiratory health has directly translated into tangible financial performance for key component manufacturers. According to Sensirion, March 2025, in the 'Annual Report 2024', the company registered a 36% revenue increase in its industrial market segment, a growth trajectory driven primarily by the strong recovery in demand for air purifiers and air quality monitoring components.

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Key Market Challenges

The primary challenge hampering the growth of the Global Carbon Dioxide Monitors Market is the technical susceptibility of lower-cost sensors to calibration drift. This operational flaw forces facility managers to conduct frequent, labor-intensive maintenance to ensure data remains reliable. When sensors lose accuracy, they trigger incorrect ventilation responses, which defeats the purpose of installing energy-efficient systems and significantly inflates the long-term total cost of ownership. This financial burden creates hesitation among potential buyers in cost-sensitive sectors, who fear that the recurring expense of recalibration will outweigh the initial savings provided by the hardware.

This issue is intensified by rigid compliance standards that demand unwavering precision. According to REHVA, in 2025, updated regulatory models for indoor environmental quality mandate that acceptable sensor deviation must not exceed 5% during occupancy hours to ensure valid assessment. Budget-friendly monitoring solutions frequently struggle to sustain this narrow margin of error over time without constant manual intervention. Consequently, the market faces reduced adoption rates in mass-market applications where organizations cannot justify the high operational overhead required to keep inexpensive sensors compliant with these strict industrial benchmarks.

Key Market Trends

Expansion into automotive cabin air monitoring is rapidly gaining traction as manufacturers prioritize passenger safety and energy efficiency in electric vehicle architectures. Modern automotive designs are increasingly integrating carbon dioxide sensors to manage recirculation flaps dynamically, balancing the need to minimize thermal load on battery systems with the prevention of driver drowsiness caused by elevated CO2 levels. This sector-specific demand is creating a robust revenue stream for component manufacturers who have adapted their portfolios to meet rigorous automotive reliability standards. According to Sensirion, March 2025, in the 'Annual Report 2024', the company reported that revenue in its automotive market segment amounted to CHF 80.6 million, an increase of 11.3% compared to the previous fiscal year.

Simultaneously, the proliferation of portable and wearable monitoring devices is democratizing access to air quality data for individual consumers. Driven by heightened health awareness, this trend moves monitoring technology beyond commercial infrastructure and into residential spaces through compact, battery-operated units that track environmental parameters in real-time. This shift towards personal-grade diagnostics is supported by advancements in sensor miniaturization that allow for seamless integration into smart home ecosystems without compromising measurement accuracy. This consumer-led momentum is substantial; according to Airthings, March 2025, in the 'Annual Report 2024', the company's consumer segment registered an underlying revenue growth of 25%, a surge attributed specifically to the strong increase in the volume of devices sold to residential end-users.

Segmental Insights

The Transcutaneous Carbon Dioxide (tcpCO2) Monitors segment is recognized as the fastest-growing category within the global market, driven by the critical shift toward continuous and non-invasive patient assessment. This growth is primarily attributed to the ability of these devices to measure gas levels through the skin, effectively reducing the reliance on painful arterial blood gas sampling, especially in neonatal intensive care units. Additionally, consistent clearances from the US Food and Drug Administration for these monitoring applications have validated their efficacy and accelerated their integration into standard respiratory care protocols.

Regional Insights

North America maintains a dominant position in the Global Carbon Dioxide Monitors Market, primarily driven by rigorous regulatory frameworks regarding indoor air quality and occupational safety. The Occupational Safety and Health Administration mandates specific permissible exposure limits for carbon dioxide in workplaces, necessitating the widespread deployment of detection systems to ensure employee safety. Furthermore, established guidelines from the American Society of Heating, Refrigerating and Air-Conditioning Engineers regarding building ventilation standards encourage the integration of these monitors in commercial infrastructure. This strong emphasis on regulatory compliance creates a sustained demand for monitoring technology across industrial and commercial sectors in the region.

Recent Developments

• In September 2024, Infineon Technologies AG launched the XENSIV PAS CO2 5V sensor, a new environmental sensor based on photoacoustic spectroscopy technology. The company developed this device to improve energy efficiency in buildings by enabling ventilation systems to adapt to actual occupancy levels through precise air quality monitoring. The Vice President of Ambient Sensing at Infineon stated that the sensor was suitable for commercial and residential HVAC systems as well as IoT devices such as smart thermostats and air purifiers. The product featured a miniature form factor and was designed to seamlessly integrate with microcontrollers for easier development.
• In August 2024, Sensirion announced the worldwide availability of a new gas concentration sensor, the STC31-C, capable of measuring high-range carbon dioxide concentrations. The company utilized a thermal conductivity measurement principle to achieve high repeatability and long-term stability for the sensor, which was designed for high-volume applications like shipping perishable goods and breath analysis. Sensirion indicated that the component offered low power consumption and reduced cross-sensitivity to humidity and oxygen. The sensor was positioned as a cost-effective solution for mass production, supported by the release of an evaluation kit for testing and development.
• In June 2024, Vaisala introduced a new portable carbon dioxide probe, the GMP80P, intended for use in demanding environments such as life science incubators. The company described the probe as having a pump sampling function and being compatible with the Indigo80 handheld indicator for professional measurement requirements. The Product Manager at Vaisala highlighted that the probe allowed for sampling from inside an incubator without opening the door, thereby preventing contamination and maintaining stability. This launch expanded the company's modular portable product family, offering a rugged solution for precise CO2 concentration monitoring in industrial applications.
• In January 2024, CO2Meter Inc. released a new portable device designed to verify carbon dioxide and oxygen concentrations in welding gas mixes. This analyzer, identified as the CM-1652, was developed to measure and analyze gas blend compositions utilized in welding processes, specifically targeting CO2 levels of 0-50% and oxygen levels of 0-25%. The company stated that the device featured advanced dual-sensor technology and preconfigured measurements to meet the needs of welders and gas distributors for quality assurance and compliance. The Executive Vice President of CO2Meter noted that the product was designed to exceed industry expectations for gas analysis.

Key Market Players

• ABB Ltd,
• Honeywell International, Inc
• Siemens AG
• Vaisala Oyj
• Asahi Kasei Corporation
• GE HealthCare Technologies Inc.
• Koninklijke Philips N.V.
• Drägerwerk AG & Co. KGaA
• Masimo Corporation
• Nihon Kohden Corporation

By Product	By Type	By Application	By Region
Wall-Mounted Carbon Dioxide (CO2) Monitors Pipeline Carbon Dioxide (CO2) Monitors	End-Tidal Carbon Dioxide (EtCO2) Monitors Transcutaneous Carbon Dioxide (tcpCO2) Monitors	Hospital Use Scientific Research Breweries Greenhouses Underground Car Parks Office Buildings Others	North America Europe Asia Pacific South America Middle East & Africa

Report Scope:

In this report, the Global Carbon Dioxide Monitors Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

• Carbon Dioxide Monitors Market, By Product:

• Wall-Mounted Carbon Dioxide (CO2) Monitors
• Pipeline Carbon Dioxide (CO2) Monitors

• Carbon Dioxide Monitors Market, By Type:

• End-Tidal Carbon Dioxide (EtCO2) Monitors
• Transcutaneous Carbon Dioxide (tcpCO2) Monitors

• Carbon Dioxide Monitors Market, By Application:

• Hospital Use
• Scientific Research
• Breweries
• Greenhouses
• Underground Car Parks
• Office Buildings
• Others

• Carbon Dioxide Monitors Market, By Region:

• North America
• United States
• Canada
• Mexico
• Europe
• France
• United Kingdom
• Italy
• Germany
• Spain
• Asia Pacific
• China
• India
• Japan
• Australia
• South Korea
• South America
• Brazil
• Argentina
• Colombia
• Middle East & Africa
• South Africa
• Saudi Arabia
• UAE