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Purple Air (PA-II) is an air quality monitor that uses dual lasers to measure PM1, PM2.5, and PM10. The sensor also measures Relative Humidity and Temperature. Purple Air II (PA-II) is available in two versions: SD data memory and WiFi data transfer.
Become a SciStarter Ambassador!
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Applications to join the final cohort in this inaugural class of SciStarter Ambassadors due May 2nd

Libraries and community organizations need your help to spark excitement for citizen science and keep the momentum going!

The SciStarter Ambassador Program offers FREE training to volunteers ready to make an impact in their communities.

Ready to make a difference? Complete your application by May 2nd to join the movement!