An air quality monitoring network built on a new generation of Laser particle counters. PurpleAir Sensors use WiFi to report local air quality in real time to the PurpleAir Map.

In the fall of 2015, Air Quality Monitors were installed along the Wasatch Front in the greater Salt Lake valley. The unique bowl shaped geography experiences frequent winter inversions and traps air pollution. Our goal was to understand and track these changes to air quality.

Read our new Frequently Asked Questions

Get a PurpleAir Sensor

Host a sensor on us: We place sensors at no cost in some situations and if you think you qualify to host one (we maintain ownership of the device) please contact us to explain why.

Buy one now: Due to the number of hosting requests, we decided to offer some devices for sale so you can get one of your own.

A small batch of prototype sensors (exactly like the sensors currently deployed) will be shipped to buyers within the next two weeks. Delivery for the rest will be some time after that. You will be updated on progress and notified of your ship date. A full refund on pre-orders is offered at any time if you decide not to wait. Complete with USB power adapter and mounting bracket, these sensors come PurpleAir Map enabled (with a private mode) and may be used indoors!

View the PurpleAir Map