Most popular
How air quality data contributors and sources are credited on the IQAir website and app?
IQAir is able to provide the world’s largest database of global air...
Why are some data contributors “anonymous”?
On the IQAir platform, all ground-based stations are attributed to ...
How is air quality data validated before publishing on the AirVisual platform?
The AirVisual platform aims to centralize and aggregate as much air...
What is the air quality index (AQI)?
What is the air quality index (AQI)?
What does the asterisk (*) mean on some locations' AQI?
Whilst the world's coverage of ground-based air monitoring stations...
How can I rename my AirVisual Pro?
To rename your AirVisual device, you must be its owner and you must...
Samba data download troubleshooting
If you are having difficulty downloading your device's data via Sam...
How does the Live Major Cities Ranking work?
The live Major Cities Ranking [https://www.iqair.com/ae/world-air-...
How to access the AirVisual Pro's API
The IQAir's AirVisual air quality sensor [https://www.iqair.com/ae/...
Export historical data from your AirVisual Pro using a mobile phone
To access the historical data that is stored within your AirVisual ...
How can I make my outdoor AirVisual device's data public?
1. Choose your location Our AirVisual Outdoor is designed to perfo...
My PM2.5 sensor has got 'stuck' on a very high number
Due to the function of the AirVisual air monitor's PM2.5 sensor, to...
My AirVisual Pro is reporting temperatures higher or lower than the actual ambient outdoor temperature. What could be causing this?
In a controlled testing environment, the AirVisual Pro was tested b...
How many countries are on the AirVisual Platform?
There are over 140 countries, regions and territories are on AirVis...
What area coverage are the AirVisual Pro's measurements valid for?
For indoor monitoring, the coverage of an AirVisual Pro is a room (...
How is the ranking air quality data collected, processed and calculated?
All hourly values are localized to their local timezone, before bei...
My iOS widget doesn't display data
If your iOS widget doesn't display data, most likely you need to ac...
What is the difference in an AirVisual Outdoor, Purple Air and Clarity Node-S?
These are three low-cost sensors that are supported on the AirVisua...
How to download the raw data from your IQAir device/sensor?
By logging on to iqair.com and using the web dashboard, raw data fo...
How do the PM2.5 sensor and CO2 sensor work?
1. How does the PM2.5 laser sensor work? The AirVisual Node/Pro us...
Why do I need an air monitor when my air purifier already has a PM2.5 sensor inside?
Some air purifiers may contain a PM2.5 sensor, with the purpose of ...
What are the photos on station screen and how do I make use of it?
IQAir values every contributor and aims to provide our users with t...
Why is there a flashing orange light on my Atem X?
The CO2 sensor's internal light source flashes intermittently. In d...
AirVisual Outdoor specifications state that it monitors PM1 but we do not display it. Where can it be found?
PM1 can be found on the Web Dashboard, which is an optional subscri...
How often does the AirVisual Pro's sensor take measurements? What is the difference between "Continuous" and "Default" mode?
The frequency with which the AirVisual Pro takes measurements depen...
How far back does the data go?
Data for the Air Visual Series goes back up to 5 years. You can fi...
My serial number does not exist
If you're trying to add your Pro's serial number in the app or in t...
IQAir Filter Subscription
IQAir’s Filter Subscription Program ensures that you always have cl...
Air quality forecast disclaimer
This forecasting model, and all resulting air quality predictions, ...
What are the data sources for this air quality ranking?
The data included in this report is all generated from ground-based...
My AirVisual Pro shows 'No recent data' for Outdoor air quality
If your AirVisual Pro's Indoor/Outdoor comparison screen stops disp...
In Vietnam, where does AirVisual get its data from?
In Vietnam and across the world, AirVisual reports air quality data...
Why is PM2.5 chosen for this ranking?
PM 2.5 is widely regarded as the pollutant with most health impact ...
AirVisual API timestamp - how does it work?
Understanding the API timestamp is important for accurately represe...
How often should I run my system and at what speed?
At IQAir, we believe that people should breathe the cleanest air po...
How do I choose my IQAir Mask size?
The IQAir Mask comes in two sizes: Large (L) and Medium (M). L siz...
How are the yearly PM2.5 yearly measurements for country/region calculated?
The country/region average values are the estimation of the populat...
AHAM & CADR (FAQ#14)
AHAM & CADR (FAQ#14) AHAM testing is generally flawed. It calls its...
How can I see the PM2.5 concentration in µg/m3 on my AirVisual Pro?
By default, the Node/Pro displays only the AQI [https://www.iqair.c...
Changelog: 2018 World Air Quality Report
Changes refer to updates made to the 2018 World Air Quality Report ...
Android APK app installation permissions
The Android AirVisual air quality app [https://play.google.com/stor...
How to remove or move a location/station in the AirVisual app?
To delete a location/station, Find the 'cog' settings icon on "My...
What is pairing mode and how does it work?
Pairing mode is the term given to when the AirVisual Pro has activa...
Why does the AirVisual Pro monitor PM2.5 and CO2?
The AirVisual Pro, with it's large screen display, was designed to ...
What is PM2.5?
What is PM2.5? Particulate Matter, abbreviated as PM, is a term use...
Accessing PM10 data from AirVisual Pro
The AirVisual Pro's PM2.5 sensor also contains an internal PM10 sen...
AirVisual Pro software updates - Changelog
Your AirVisual Pro will receive every now and then some software up...
Why does my Wi-Fi disconnect frequently?
The AirVisual Pro remembers your WiFi networks so if you find that ...
Why is AQI different between two phones?
You may notice a difference of AQI between 2 phones using the same ...
How to show AirGradient stations and profiles on the IQAir map
How to show AirGradient stations and profiles on the IQAir map