Press release #Sensortec

Sensor tech #LikeABosch: world's smallest particulate matter sensor revolutionizes air quality measurement

Noiseless, fanless, and maintenance-free sensor provides accurate data

  • World’s smallest particulate matter (PM2.5) air quality sensor (450 times smaller in volume than alternatives) enabling use in ultra-compact IoT devices
  • Accurate measurement of PM2.5 concentration providing actionable data
  • Innovative fanless design is silent and maintenance-free
  • Bosch at CES: booth 16115 and start of new #LikeABosch campaign

Constantin Schmauder


Clean air is fundamental to our health and well-being. Today, people typically spend approximately 90% of their time indoors, which has a negative long-term impact on health because indoor air is three to five times more polluted than in the outdoor environment in most parts of the world. A major component of this pollution is fine dust known as PM2.5 particulates, which are solid and liquid particles smaller than 2.5 µm. These particulates are inhaled and enter the lungs, where they cause serious health problems.

The most common air quality measurement stations only provide outdoor data averaged over time, which fails to deliver real-time, localized information most relevant to our health. At CES® in Las Vegas, Nevada, Bosch Sensortec is addressing this issue with its new BMV080, the world’s smallest PM2.5 air quality sensor, which provides accurate, actionable data.

“Indoor air quality is a problem: in poorly ventilated homes, PM2.5 concentration from domestic cooking can reach levels 100 times higher than acceptable limits,” said Dr. Lucas Ginzinger, Head of Product Area Optics at Bosch Sensortec. “With localized, actionable data from the new BMV080, it’s now possible to identify and respond to poor air quality.”

The BMV080 sensing element measures only 4.2 x 3.5 x 3 mm³ (W x L x H), which is more than 450 times smaller in volume than any comparable device on the market. The miniscule size and fanless, non-intrusive design of the BMV080 are a game-changer, and its noiseless operation means it does not disturb residents who may be sleeping or working.

The new sensor is maintenance-free with no fan-induced dust buildup, which means that it’s more reliable, and less prone to malfunction. It is a natural fit for ultra-compact wearable or IoT devices such as air quality monitors, smart thermostats, smart speakers, smart switches and smart air purifiers.

Comparable state-of-the-art PM2.5 sensors all rely on a fan to draw air across a laser beam, where a photodiode then detects and measures the particulates as they reflect or block the light from the laser. The BMV080 utilizes an innovative design based on ultra-compact lasers with integrated photodiodes. It applies sophisticated algorithms to measure the PM2.5 concentration directly in free space, without requiring a fan.

The innovation brings awareness and choice to people who value healthy living. The new sensor is easily integrated into ultra-compact IoT-based smart home and smart building systems to deliver air quality notifications to residents when PM2.5 levels rise above a threshold level. To take action, the resident or home automation system can ventilate by switching on an exhaust fan or filter to clear the air.

"The BMV080 provides timely, accurate and actionable information about particulate concentration levels in the air, enabling the identification and handling of indoor and outdoor pollution to improve people's well-being and health,” said Stefan Finkbeiner, CEO at Bosch Sensortec. "It is dramatically smaller than existing devices on the market and opens up an entirely new set of applications for design engineers to explore."

The BMV080 provides timely, accurate and actionable information about particulate concentration levels in the air, enabling the identification and handling of indoor and outdoor pollution to improve people's well-being and health,

said Stefan Finkbeiner, CEO at Bosch Sensortec.

Bosch at CES 2023 under the motto “Sensor tech #LikeABosch”:

As a global market leader in MEMS sensor solutions, Bosch will showcase numerous innovations for consumer electronics. Click here for an overview of the sensor solutions from Bosch Sensortec.


Product samples will be available in 2023.



Bosch Sensortec GmbH, a fully owned subsidiary of Robert Bosch GmbH, develops and markets a wide portfolio of microelectromechanical systems (MEMS) sensors and solutions tailored for smartphones, tablets, wearables and hearables, AR/VR devices, drones, robots, smart home and IoT (Internet of Things) applications. The product portfolio includes 3-axis accelerometers, gyroscopes and magnetometers, integrated 6- and 9-axis sensors, smart sensors, barometric pressure sensors, humidity sensors, gas sensors, optical microsystems and comprehensive software. Since its foundation in 2005, Bosch Sensortec has emerged as the MEMS technology leader in the markets it addresses. Bosch has been both a pioneer and one of the leading providers in the MEMS sensor segment since 1995 and has, to date, sold more than 18 billion MEMS sensors.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability. In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source. It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

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