How air quality data contributors and sources are credited on the IQAir website and app?
Why are some data contributors "anonymous"?
How is air quality data validated before publishing on the AirVisual platform?
What does the asterisk (*) mean on some locations' AQI?
How do I get my station's data through API?
Why does the AirVisual Pro monitor PM2.5 and CO2?
Will AirVisual Outdoor sensors communicate effectively if the location is made of concrete or cinderblock?
What is an air quality widget and how can I use one to display air quality information on my webpage?
How to update your outdoor data contributor profile
How does the Live Major Cities Ranking work?
IQAir implements 2024 update to U.S. EPA Air Quality Index (AQI)
My PM2.5 sensor has got 'stuck' on a very high number
Access AirVisual's AQI, Air quality and pollution API
AirVisual Pro maintenance and sensor recalibration
How do the PM2.5 sensor and CO2 sensor work?
Why does your AQI differ from other sites?
How to Update AVO Firmware with an SD Card
How to change the language of your App
What is the difference between the US AQI and WHO air quality guidelines?
AirVisual Pro API returned JSON format
Why are AirVisual and AirNow showing different AQI numbers?
How can I access historical data on the IQAir platform?
How can I access air pollution data through AirVisual's air quality API?
My serial number does not exist
How to remove or move a location/station in the AirVisual app?
Download or export your AirVisual device's data
No nearby location / the app assumes wrong location
AirVisual Network Specification
Which Atem Series filter is better: Atem Desk or Atem Car?
Cannot register my monitor's serial number
Why is your air quality index different from other sites?
Outdoor low cost sensor Comparison Chart
How to provide public air quality data with AirVisual Outdoor
How accurate is AirVisual's air quality data?
What is PM2.5?
How to connect the AirVisual Pro to Wi-Fi?
Where can I find my AirVisual Pro's serial number?
How often should I run my system and at what speed?
Main pollutant thresholds for US and China Air Quality Indexes (AQI)
Where is the display screen for the AirVisual Outdoor?
What is the differences between AirVisual Outdoor and Purpleair?
How to download the raw data from your IQAir device/sensor?
Why is the AirVisual Pro's screen reading different to what is shown on the app?
How can I access the PM10 measurements from my AirVisual Pro?
Why is the US Air Quality Index used in the ranking?
What is the difference in an AirVisual Outdoor, Purple Air and Clarity Node-S?
How are Hanoi's air quality (AQI) and the major city rankings calculated?
AHAM & CADR (FAQ#14) AHAM testing is generally flawed. It calls its test CADR or Clean Air Delivery Rate. * AHAM does not create realistic test cond...
How are Hanoi's AQI and the city rankings calculated?