CMU researchers develop longer-lasting indoor air quality sensors

Reeja Jayan and Shwetha Sunil Kumar's research provides a potential pathway to more effective and affordable monitoring devices.

Reeja Jayan and Shwetha Sunil Kumar. / CMU

Reeja Jayan and Shwetha Sunil Kumar, researchers of Indian origin at Carnegie Mellon University, have developed a new technology that extends the lifespan of indoor air quality sensors and improves their ability to detect formaldehyde, a chemical found in many household products. Their findings were recently published by CMU’s Center for Atmospheric Particle Studies.

Formaldehyde is emitted by common items such as cleaning supplies, cosmetics, and furniture, and prolonged exposure can pose health risks. Indoor air monitors can help track these levels, but existing devices often degrade quickly and fail to catch low concentrations.

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