CO is a colorless, odorless gas that can be harmful when inhaled in large amounts.

Ozone is a gas composed of three atoms of oxygen (O3). Ozone at ground level is dangerous for us.

In the website below, you will find more information about CO and O3, the two main air pollutants we intend to check with our device:

https://www.epa.gov/co-pollution/basic-information-about-carbon-monoxide-co-outdoor-air-pollution#What%20is%20CO

https://www.epa.gov/ozone-pollution/ozone-basics#what%20where%20how