AI Nose

A wider range of applications more suited to healthy life

Our semiconductor wafer-type gas sensor is developed with micro-electromechanical system (MEMS) technology, to achieve the smallest, lowest energy consumption at the lowest cost. Featuring a complete wafer system with high integration capabilities, multiple sensors can be detected at the same time.


AI Nose’s sensing element is comprised of a sensor chip and integrated digital process chip formed on a silicon substrate using MEMS technology. It includes a metal-oxide semiconductor layer formed on the sensing chip. Requires heater power and digital process consumption of only 70mW, it is suitable for low-power equipment and battery-operated instruments. In the presence of detectable gas, sensor conductivity increases depending on gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output to digital signal which corresponds to the gas concentration.

The AI Nose has high sensitivity to low concentrations of gaseous air contaminants such as Ammonia, Methanol Carbon monoxide and Ethanol odors. By utilizing the change ratio of sensor resistance from the resistance in clean air as relative response, human perception of odor concentration can be simulated and practical odor quality control can be achieved.

Target applications

AI Nose focuses on two inter-related applications: air quality and health monitoring.

A semiconductor wafer-type gas sensor is developed with micro-electromechanical system (MEMS) technology, to achieve compact size, low energy consumption and reduced cost, without sacrificing complete wafer system high integration capabilities. Four sensors can be detected at the same time.
    • Global issues: The World Health Organization (WHO) has declared air pollution as a global health hazard. Air pollution may cause strokes, heart disease, lung cancer and respiratory diseases.
    • Clear policy support: Many countries already have clearly-defined air quality standards.


Health detection: reaching the full potential of respiratory-monitoring applications
    • Solutions based on the examining of the human body's natural respiratory system have great potential for monitoring personal health because they are non-invasive, painless, and easy to repeat operations.
    • Numerous medical studies have found that changes in the concentration of specific metabolic gases are associated with specific diseases.
    • The market is lacking a sensor that is affordable, easy to mass produce and can detect low concentrations. AI Nose meet all these conditions.


Product No. AI Nose
Gas option and detection range NH3 100ppb-2ppm
CH2O 250ppb- 1.125ppm
C₂H₅OH 11ppm-56ppm
H2S 200ppb-1000ppb
CO 1ppm-400ppm
H2 100ppb-30ppm
TVOC 100ppb-100ppm
Module size (mm) 3.2 x 3.5 x 1.1