Odor Sensors Market Size

Global odor sensors market was valued at USD 3.4 billion in 2024 and is anticipated to grow at a CAGR of 30.8% between 2025 to 2034.

The odor sensors industry is growing with rapid proliferation of accurate odor detection and monitoring in various applications. An odor sensor senses, identifies, and quantifies volatile organic compounds (VOCs) and gases that cause odors. These devices function based on metal-oxide semiconductors, conducting polymers, or optical sensors to study the air composition and detect odor patterns. There are a variety of these sensors that use metal-oxide semiconductors, piezoelectric sensors, and conducting polymers to detect volatile organic compounds and gases.

These sensors are applied in food and beverage and healthcare industries for product-quality improvement, meeting regulatory requirements, and tracking environmental impact. With IoT platforms and smart systems, these odor-analysis systems provide automated, real-time analysis. The market presents various growth potential with the increasing emphasis on air quality monitoring and industrial emission monitoring.

These sensors allow for real-time monitoring and quality control through early detection of odor emissions and spoilage. Automated systems with odor sensors thus avoid human error and reduce consumption of resources while maintaining regulatory compliance in handling volatile substances within industries. The sensors also aid predictive maintenance by detecting gas leaks and hazardous conditions, thereby enhancing the safety workplace and operational outcomes.

The rising smart manufacturing trends fuel the demand for odor sensors market as efficient solutions for modern industrial needs. These sensors are increasingly being integrated by manufacturers to automatically identify odor emissions, spoilage, and hazardous conditions, minimizing human error and intervention. Automation leads to improvements in quality control processes, maximizes the efficiency of resources, and quickly detects issues, such as gas leaks, thus enhancing workplace safety. For instance, in March 2023, Toshiba developed a compact, high-sensitivity odor sensor that detects specific odors, particularly musty smells caused by 2-MIB in drinking water.

Using a quartz crystal resonator and a proprietary metal-organic framework (MOF) coating, the sensor can detect 2-MIB at concentrations as low as 0.2ppbv in air. This sensor offers a significant advantage over traditional, large analyzers by being smaller and more affordable. The technology aims to automate odor inspections at water purification plants and could be applied to other industries, including food and beverage manufacturing. Toshiba’s breakthrough enables more efficient, cost-effective odor monitoring, with applications extending beyond water quality control.

Odor Sensors Market Trends

Soaring demand for portable and wearable devices fosters the odor sensor market growth at a substantial rate. Consumer awareness about personal environment and health has increased the adoption of wearable technology for real-time monitoring. Odor sensors in portable and wearable devices help users monitor air quality, detect harmful gases, and track personal hygiene through body odor detection. These applications are important in healthcare, fitness, and personal safety sectors. In healthcare, wearable odor sensors enable non-invasive disease detection through breath biomarker monitoring.

In fitness applications, these devices monitor environmental conditions during outdoor activities. The integration of odor sensors into personal care products, including smart clothing and accessories, has created new market opportunities. The need for compact and user-friendly devices has encouraged sensor manufacturers to enhance odor sensor functionality and reduce costs. The improvements in miniaturization and sensor performance have made portable odor detection systems more practical for consumers and businesses, increasing their adoption across industries.

Odor Sensors Market Analysis

Advanced odor sensors' development and production costs create a significant barrier to market growth. Sensors incorporating artificial intelligence, IoT integration, and sensitive detection mechanisms require substantial investment in research and development. The manufacturing process involves specialized materials and precision engineering, which increases production expenses. These costs limit the accessibility of odor sensors, particularly for small and medium-sized enterprises, restricting their adoption across industries.

Increasing demand for air quality monitoring systems, especially in urban areas, is leveraging a range of opportunities for market growth over the anticipated years. The expansion of cities and industrial activities has heightened concerns about pollution, environmental health, and air quality management. Smart city initiatives incorporate odor sensors to monitor pollutants and hazardous emissions in real-time.

Government regulations on environmental protection and growing urban population awareness drive the demand for odor detection systems. These sensors help identify harmful pollutants early, supporting environmental risk mitigation and public health protection. The integration of odor sensors with Internet of Things (IoT) and artificial intelligence (AI) technologies enhances their capabilities in environmental monitoring, public infrastructure, and disaster prevention, leading to increased adoption across developed and emerging markets.

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Based on sensor type, the odor sensors market is divided into biosensor, chemical, mass spectrometry, differential optical absorption, and others. The chemical sensor type segment is the fastest growing segment, which is anticipated to grow at a rate of 34.2% during the forecast period.

• Chemical sensors dominate the odor sensor market due to their versatility and scalability in industrial and consumer applications. These sensors serve various purposes, from monitoring air quality in urban centers to enhancing smart consumer devices. Their integration with IoT and AI technologies has expanded their applications, enabling predictive analytics and automation. The chemical sensor segment continues to grow as industries prioritize sustainability and innovation, meeting complex operational demands while adapting to market requirements.
  
• The chemical sensor segment's growth in the odor sensors market contributed by the factors including chemical odor sensor ability to detect various volatile organic compounds (VOCs) and gases with high sensitivity and specificity. Industries including environmental monitoring, healthcare, and manufacturing select chemical sensors for their reliable performance in diverse environments. The incorporation of advanced materials, such as nanostructures and polymers, has improved chemical sensor performance, making them essential for applications requiring precise odor profiling and real-time detection. These capabilities are essential for industries that must comply with regulatory standards while maintaining operational efficiency.

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Based on instrument type, the odor sensors market is divided into one element odor sensor and multiodor sensor. The multiodor sensor segment is expected to reach USD 29.4 billion by 2034.  

• Multiodor sensors are transforming odor detection by overcoming the limitations of single-compound sensors through comprehensive analysis of diverse odor profiles. The integration of these sensors with smart systems and AI-driven analytics enables businesses to enhance operational efficiency and implement predictive maintenance. These devices are essential in applications that require accurate differentiation of odor sources, including industrial emissions monitoring and food quality assessments. The multiodor sensor segment is experiencing increased adoption as industries seek instruments that provide multi-dimensional odor analysis to meet quality and regulatory requirements.
  
• The odor sensors industry for multiodor sensors shows significant growth driven by their capacity to detect and distinguish multiple odor compounds simultaneously with high accuracy. This functionality is vital in complex applications across healthcare, food and beverage, and waste management industries, where detailed odor profile analysis is crucial. Technical advancements, particularly in sensor miniaturization and detection algorithms, have enhanced the precision and dependability of multiodor sensors. These improvements address the need for adaptable instruments in dynamic environments, such as urban air quality monitoring and real-time diagnostics, providing industries with data-driven insights for decision-making.

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In the North America odor sensors Market, U.S. is expected to grow at a CAGR of 5% during the forecast period. The growth of the U.S. Odor sensors industry is mainly driven by the adoption of odor sensors is increasing due to growing concerns about air pollution and environmental health, particularly in urban areas and industrial environments. Environmental regulations and the need for real-time air quality monitoring are creating market opportunities. The development of smart cities and Internet of Things (IoT) integration is expanding odor sensor applications across infrastructure and consumer products. The integration of artificial intelligence and machine learning technologies is enhancing odor detection accuracy, leading to innovations in healthcare, food safety, and waste management sectors.

China odor sensors industry is contributed to the factors such as growing focus on industrial modernization and increasing environmental sustainability initiatives are increasing the demand for odor sensors in manufacturing, waste management, and environmental monitoring. Government regulations on air quality and waste management require industries to implement odor detection systems. The expanding consumer electronics market is driving the development of portable and wearable odor sensors for personal air quality monitoring. Additionally, the incorporation of odor sensors in smart city projects supports their role in public health and safety improvements.

The odor sensors market is rapidly growing in India especially due to rapid urbanization and industrial growth necessitate improved air quality monitoring and environmental management systems. The country's pollution challenges increase the demand for odor sensors to monitor emissions and pollutants, supporting public health measures and regulatory compliance. The healthcare sector, particularly in wearable devices for breath analysis, further drives market expansion. Government initiatives for environmental sustainability and smart city development create opportunities for odor sensor technology implementation across the country.

South Korea market is propelled by the increasing emphasis on environmental sustainability and rapid urbanization fuels the odor sensor adoption. The country's strict air pollution and waste management regulations require industries to implement odor detection systems for compliance. South Korea's strong position in consumer electronics manufacturing enables the integration of odor sensors into portable and wearable devices. The development of smart cities and connected infrastructure creates opportunities for implementing odor sensors in real-time air quality monitoring systems, supporting public health and safety measures in urban areas.

The growth of the odor sensors market in Japan is supported by the region’s technological infrastructure and environmental protection policies. The focus on public health and safety increases the demand for real-time air quality monitoring systems, which drives the adoption of odor sensors in urban and industrial areas. The healthcare and wellness industries implement odor sensors for disease detection and hygiene monitoring. Additionally, odor detection technology integration in smart homes and automation systems improves living conditions and energy efficiency in urban areas.

Odor Sensors Market Share

The market is characterized by a dynamic competitive landscape, driven primarily by the demand for highly advanced sensing technologies across various industries. The players include established sensor manufacturers, technology companies, and emerging startups developing solutions specifically for healthcare, environmental monitoring, and consumer electronics sectors. Companies are investing in R&D to enhance sensor accuracy, sensitivity, and integration with IoT platforms and AI technologies. While multinational companies maintain a significant market presence, specialized firms are emerging with focused solutions in portable and wearable odor sensors, resulting in market fragmentation.

Companies are inclining toward strategic partnerships, mergers, and acquisitions to strengthen their product offerings and expand their geographical presence. Regulatory requirements and environmental considerations play a role in the intensity of market competition, as companies strive to develop sustainable and cost-effective solutions that comply with air quality standards. The market is continuously evolving through technological innovation, strategic collaborations, and the development of real-time odor detection systems. It reflects the industry's response to increasing demands for sophisticated sensing solutions across various applications.

Odor Sensors Market Companies

Major players operating in the odor sensors industry are:

• Aeroqual
• Airscan Technologies
• Airsense Analytics GmbH
• Alpha MOS
• Ams OSRAM AG
• Aryballe 
• Bosch Sensortec GmbH
• Comon Invent
• Envirosuite Limited
• Figaro Engineering Inc.
• Osun Technologies Inc.
• Renesas Electronics Corporation
• RoboScientific Ltd.
• Sensigent LLC
• Sensirion AG
• SGX Sensortech
  

Odor Sensors Industry News

• In June 2024, Aroma Bit, Inc. unveiled a prototype of the world’s smallest CMOS-based e-nose odor imaging sensor. The chip integrates 100 odor-receptor membranes using SIJ Technology’s advanced super inkjet printing with a sensor element area of just 1.2 x 1.2 mm. This breakthrough achieves the highest density of sensor elements to date, offering high odor resolution in a compact form factor. Technology enables seamless integration into diverse devices, paving the way for low-cost, high-volume applications.  
  

This odor sensors market research report includes in-depth coverage of the industry with estimates & forecast in terms of revenue (USD Million) & volume (Million Units) from 2021 to 2034, for the following segments:

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Market, By Sensor Type

• Biosensor
• Chemical
• Mass spectrometry
• Differential optical absorption
• Others

Market, By Instrument Type

• One element odor sensor
• Multiodor sensor

Market, By Application

• Smell visualization and standardization
• Food quality control
• Medical diagnosis
• Air control and environmental monitoring
• Others

Market, By End Use

• Military defense
• Agriculture
• Healthcare
• Entertainment
• Food beverage
• Others

The above information is provided for the following regions and countries:

• North America
  • U.S.
  • Canada
• Europe
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Rest of Europe
• Asia Pacific
  • China
  • India
  • Japan
  • South Korea
  • ANZ
  • Rest of Asia Pacific
• Latin America
  • Brazil
  • Mexico
  • Rest of Latin America
• MEA
  • UAE
  • Saudi Arabia
  • South Africa
  • Rest of MEA