Category Topics


PurpleAir is built on the ideal of sharing data and by doing this, empowering individuals to effect change. All public PurpleAir data is available to download under various licenses from private, not for profit use to educational and commercial use. The common element between these uses is to share attribution. This section serves as a starting point for information on accessing, using and interpreting PurpleAir data.


This category contains frequently asked questions about PurpleAir and our sensors, map and data. Ask your own questions or browse what is here.

Real-Time Map

This category will guide you through the basics of the PurpleAir Real-time Map. The map provides a convenient view of air quality and other PurpleAir data throughout the world as well as in your own neighborhood.


This category serves as a knowledge base, providing information on PurpleAir sensors and a place to discuss the hardware.

User Experience

This category can be used to share your experiences with PurpleAir. It is a great place to post feedback, feature requests, and bug reports.


This category contains general information and resources.

Air Quality Events

The PurpleAir Community can use this category as a place to discuss local air quality issues and any interesting data we see on the PurpleAir Map that may signify larger-scale events.

Community Projects

Show off your PurpleAir projects or ask the community questions about using PurpleAir sensors in community projects. This category will serve as a place to share and learn about using air quality sensors in community projects.