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?
What is an air quality widget and how can I use one to display air quality information on my webpage?
Will AirVisual Outdoor sensors communicate effectively if the location is made of concrete or cinderblock?
How does the Live Major Cities Ranking work?
How to update your outdoor data contributor profile
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?
How to Update AVO Firmware with an SD Card
How to change the language of your App
How can I access air pollution data through AirVisual's air quality API?
Why does your AQI differ from other sites?
AirVisual Pro API returned JSON format
My serial number does not exist
How can I access historical data on the IQAir platform?
What is the difference between the US AQI and WHO air quality guidelines?
Why are AirVisual and AirNow showing different AQI numbers?
How often should I run my system and at what speed?
Download or export your AirVisual device's data
How to remove or move a location/station in the AirVisual app?
AirVisual Network Specification
What is PM2.5?
No nearby location / the app assumes wrong location
Which Atem Series filter is better: Atem Desk or Atem Car?
Outdoor low cost sensor Comparison Chart
How to provide public air quality data with AirVisual Outdoor
How to connect the AirVisual Pro to Wi-Fi?
What is the differences between AirVisual Outdoor and Purpleair?
Cannot register my monitor's serial number
Where can I find my AirVisual Pro's serial number?
Where is the display screen for the AirVisual Outdoor?
Main pollutant thresholds for US and China Air Quality Indexes (AQI)
How accurate is AirVisual's air quality data?
Why is your air quality index different from other sites?
How to download the raw data from your IQAir device/sensor?
What is the difference in an AirVisual Outdoor, Purple Air and Clarity Node-S?
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?
How are Hanoi's AQI and the city rankings calculated?
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...