Revolutionary Sensor Brings Real-Time Air Quality Monitoring to the Personal Level
Bosch Sensortec Unveils World’s Smallest PM Sensor, “BMV080”
In 2025, Bosch Sensortec introduced the BMV080, the world’s smallest particulate matter (PM) sensor. Measuring just 4.4 mm x 3.0 mm x 20 mm (including the flexible PCB connector), the BMV080 is over 450 times smaller than conventional PM sensors. This breakthrough makes it feasible to integrate high-precision air quality monitoring into wearables and compact portable devices, where size has previously been a limiting factor.
The BMV080 accurately measures PM2.5 mass concentrations in real time, and can also detect PM1 and PM10 levels. Utilizing an optical sensing method, the device operates without the need for fans or dedicated airflow channels. This fanless design improves reliability, ensures quiet operation, lowers power consumption, and enables waterproof and flexible industrial design options.
Exposure to fine particles that reach deep into the lungs is linked to various health risks. According to global estimates, about 99% of the world’s population breathes air that exceeds health-based limits, underscoring the rising importance of personal air quality monitoring. With the launch of the BMV080, Bosch opens the door for integration into a wide range of applications, including air purifiers, smart thermostats, HVAC systems, and wearable environmental monitors.
Key Specifications
- Measurement range: 0–1,000 µg/m³
- Accuracy: ±10 µg/m³ (0–100 µg/m³), ±10% (101–1,000 µg/m³)
- Max output data rate: 0.97 Hz
- Typical operating current: <68 mA (at 0.97 Hz)
Key Terms
- PM2.5: Particulate matter with a diameter of 2.5 micrometers or less; capable of penetrating deep into the lungs and posing health risks.
- Fanless Design: A design approach that eliminates moving parts, enhancing reliability, reducing noise, and lowering power use.
- Wearable Air Quality Sensor: A portable sensor worn on the body to monitor air pollution in real time for health and environmental applications.