https://plumelabs.com/en/


Price: $199

Description:

Measure air quality, predict pollution and plan your commutes with your personal air quality sensor and companion app.

With it’s detailed maps, real-time data and itinerary recommendations, Flow guides you towards the least polluted streets around. Whether you’re going somewhere specific or just for a stroll, alone or with your loved ones, Flow will let you know where the air is cleanest. Just follow the signs!

The SELF Institute