BLUE - 90-100 - Good
YELLOW - 80-89 - Fair
ORANGE - 70-79 - Moderate
RED - 60-69 - Unhealthy
PURPLE - 0-59 - Very Unhealthy
Frequently Asked Questions
What do the different colors mean? (Tracker and Halo)
What is AQI?
The AQI (Air Quality Index) is an index for reporting daily air quality. It tells you how clean or polluted your air is and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air.
We calculate the AQI based on the same conversion chart used by EPA Airnow with the exception that we use the real-time PM2.5 readings. What that means is the AQI value is also in real-time whereas Airnow AQI is based on 24 hours average.
What is Particulate Matter (PMs)?
PM stands for particulate matter (also called particle pollution): the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, are large or dark enough to be seen with the naked eye. Others are so small they can only be detected using an electron microscope.
Particulate matter contains microscopic solids or liquid droplets that are so small that they can be inhaled and cause serious health problems. Some particles less than 10 micrometers in diameter can get deep into your lungs and some may even get into your bloodstream. Of these, particles less than 2.5 micrometers in diameter, also known as fine particles or PM2.5, pose the greatest risk to health.
For more information on Particulate Matter please refer to this article from the EPA: Particulate Matter Basics
What is Night Mode and how do I enable it?
Night Mode will turn off the LED light on the front of the Tracker for use at night. To enable Night Mode on the Tracker press the power button twice in quick succession.
Alternatively, you can enable Night Mode in the app if you have your Tracker paired.
How do I charge the Tracker?
If you own a Plus purifier, place the Tracker into the base of the purifier and the Tracker will automatically start to charge.
If you do not own a Plus and purchased the Tracker separately, slide your Tracker into the charging dock provided.
How do I pair the Tracker to the app?
To pair your Tracker, select “Add a New Device” in the Devices tab. Then select “Air Quality Tracker” and then press “Begin Pairing”. Turn on your Tracker by pressing the power button located on the side of the device. In the app select “It’s on.”. Your app will now be searching for your Tracker. Press and hold the power button on the Tracker for 3 seconds until the LED light begins to flash a white light. Once the app and Tracker have successfully paired, the LED light on the Tracker will flash green.
How do I attach the Tracker to my clothing?
There is a built-in clip on the back of the Tracker. Simply apply pressure to the indentation on the back of the device to open the clip and attach the Tracker to your clothing, bag, backpack, stroller, etc.
The air quality numbers keep changing...is it broken?
No, due to the random nature of air currents, air composition is constantly changing as air flows around you. If you find the refresh rate too frequent for your taste, simply lower it in the Wynd app and a more constant number will be displayed.
My readings don’t match the nearest government-run air monitoring station. Why?
In the US, government-run air monitoring stations take an AQI average every 24 hours. This means that the air quality you see from that station may not be current anymore. Our Tracker monitors data in real-time so our AQI is calculated in real-time as well. This means our AQI score is a more accurate depiction of your AQI than the government station’s score.
Your location matters as well. The air at your current location will be different than the air at the government station. For example, if you are near a campfire your Tracker will reflect those particulates but the government station will not. It is a good idea to use your local government station’s score to get a baseline of the air quality in your area instead of using it as a direct comparison to your Tracker’s readings.