Pocket CO₂ Sensor

monitor your air
outside the coal mine
The airCoda Pocket CO₂ Sensor monitors air quality wherever you go, using the free airCoda app. It constantly estimates the percent of exhaled breath in your air, as well as VOCs.
Open the app (for iOS or Android) to see your latest levels, a day map of when and where your exposures were highest, and a calendar summary of your personal air quality history.
Quick demo
When should I mask to avoid infectious disease?
Instead of blindly following others or waiting for guidance from authorities, use data from your own sensor.
We spend 90% of our time indoors, where pollutants are often 2 to 5 times higher than outdoors.
The airCoda Pocket Sensor is optimized for measuring indoors, where high CO2 indicates poor ventilation.*
High carbon dioxide also reduces cognitive performance, even at non-toxic levels common in offices and classrooms. Work measurably slows down, and students score worse on their tests.*
The airCoda Pocket Sensor measures gases (not particles) so it doesn't need to dangle out in the open.
Discretely monitor your air from inside your pocket or bag.