Odor Sensors Market Size

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.

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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.