THE MOST COMPLETE AND PRECISE PERSONAL AIR QUALITY SENSOR: Flow 2 is a real-time wearable pollution sensor. It is the only one able to measure Nitrous Oxides (NO2), caused by exhaust gases. It also measures Volatile Organic Compounds (VOC) and Particulate Matter (PM1, PM2.5 and PM10). Its new Idle' mode allows it to stay charged from 24h to 72h - CONNECTED TO YOUR MOBILE: Flow 2 maps your daily pollution exposure, both outside and inside. Find all the data and maps of the pollution you've been exposed to on the Flow mobile app. You'll even have the option to export your data - A TOOL AGAINST POLLUTION: Flow 2 measurements help you to better understand your pollution exposure and therefore reduce it, as well as protect the ones most affected by pollution (asthmatic, babies, elderly) - A TOP-SHELF TECH SENSOR: Flow 2 is the result of 5 years of R&D, in collaboration with world-leading experts. It has been multi-awarded for its design and abilities. Moreover, the embedded Artificial Intelligence on Flow 2 provides higher precision.