Here is a selection of commonly asked questions. Browse around to find more.
Sensors
- How do I download sensor data?
- Does PurpleAir have an app?
- Can I add a mesh screen to my sensor to keep out bugs and critters?
- Can I calibrate my PurpleAir sensor?
- How can I tell if my sensor is not performing properly?
- How do PurpleAir sensors compare to regulatory particulate matter sensors?
- How do PurpleAir sensors work, and what do they measure?
- How do the PurpleAir sensors differ, and can I mount them indoors OR outdoors?
- How many sensors should I install in my area?
- My Zen LED’s have gone dark. Did they fail?
- What do I do if one of my channels is downgraded, reporting high, not working, or spikes erratically?
- What hostnames and ports do PurpleAir sensors use?
Real-Time Map
- Can I add data from non-PurpleAir sensors?
- How do I log in to the PurpleAir map?
- How do I view average rings on the sensor icons?
- How do I view different types of data on the PurpleAir map?
- How many sensors are there in a particular area?
- Should I use the conversion factors on the PurpleAir map?
- What does downgraded mean on the graph?
- What is the PurpleAir map?
Purchasing
- Can I request an invoice or quote for PurpleAir sensors?
- How do I order PurpleAir sensors on the website?
- How to Request a Refund
- Payment Methods
- Purchase Orders