FAQ

Shipping This sub-category relates to FAQ questions about PurpleAir shipping. Real-Time Map This sub-category is related to FAQ questions about the PurpleAir map. Sensors This category relates to FAQ questions about PurpleAir sensors. Purchasing Welcome to our purchasing page. You will find most information on common questions from tax-exempt to doing a purchase order. Let us know if you have any questions.

Topic	Replies	Views	Activity
PurpleAir FAQ FAQ Here is a selection of commonly asked questions. But these are not all questions or answers. Clicking on any one of the questions will take you to that question in our community forum. From there, you can search for more…	0	16164	March 1, 2023
About the FAQ category FAQ	1	2457	December 29, 2022
Q. Does PurpleAir have an app? FAQ	12	12237	June 19, 2025
Q: How do the PurpleAir sensors differ, and can I mount them indoors OR outdoors? Sensors	1	2356	June 9, 2025
How Do I Know if my Sensor is Working Properly? FAQ	0	152	April 11, 2025
Q: Can I set my PurpleAir Sensor to Private, and how do I View a Private Sensor on the Map? Real-Time Map	9	2434	February 21, 2025
Purchasing Purchasing	0	233	December 13, 2024
Q: Can I Take my Sensor on the Road? Sensors	0	255	December 18, 2024
Tax Exempt Purchasing	0	192	December 13, 2024
Purchase Orders Purchasing	0	1125	August 15, 2022
Payment Methods Purchasing	0	4349	June 2, 2022
Q. How to Request a Refund Purchasing	0	1177	October 20, 2021
Q: What does downgraded mean on the graph? Real-Time Map	0	1388	June 3, 2022
Q: What hostnames and ports do PurpleAir sensors use? Sensors	0	1863	April 20, 2023
Indoor Sources of Particulate Matter (PM) FAQ	0	434	June 4, 2024
Q: What do I do With a Replacement Sensor? Real-Time Map	0	144	September 25, 2024
Is there a package with indoor and outdoor sensors? Purchasing	1	188	September 12, 2024
Micro SD Card Sensors	4	328	July 24, 2024
How do I match PurpleAir's Map with AirNow's Fire and Smoke Map? FAQ	0	1309	July 26, 2023
Q: Can I add data from non-PurpleAir sensors? Real-Time Map	0	1969	June 3, 2022
Q: Why are my sensor's LEDs blue? Sensors	0	920	January 12, 2024
Q: LCS vs FRM/FEM Sensors	0	142	June 27, 2024
Q: How Do I Calculate My API Call's Point Cost FAQ	0	437	May 29, 2024
Q: Does SD Card Data Get Uploaded to the Map? Sensors	0	192	June 19, 2024
SD card max size Sensors	1	156	June 18, 2024
Sensors firmware Sensors	1	387	June 18, 2024
Q: How do I view Outdoor/Indoor/My PurpleAir sensors? Real-Time Map	0	954	June 3, 2022
Q: Should I use the conversion factors on the PurpleAir map? Real-Time Map	4	4660	March 14, 2024
How do I download sensor data? FAQ	3	5415	March 4, 2024
Q: How Do I Download Map Graph Data Real-Time Map	13	4665	January 23, 2024