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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...

Why was my air quality bad yesterday and today its good?

Air quality changes from day to day. Many factors such as the pollu...

What are the steps taken to ensure the quality of data of the ranking?

Outlying values in a city which has multiple stations is filtered o...

How do I associate a new monitor with my existing public station?

1. Remove the existing monitor. 2. Install the new monitor at the...

How does the Live Major Cities Ranking work?

The live  Major Cities Ranking [https://www.iqair.com/in-en/world-a...

My city's data is unavailable on the AirVisual map

AirVisual currently provides data for over 80,000 locations worldwi...

What power is used for the AirVisual Outdoor?

The AirVisual Outdoor uses standard power. It's connected via the s...

Why are the WHO Air Quality Guidelines used when different countries have different ambient air quality requirement?

The WHO air quality guidelines (AQGs) are intended for worldwide us...

How to claim your PurpleAir sensor

PurpleAir sensors are seamlessly integrated into the IQAir platform...

Where does AirVisual get its air quality data from?

AirVisual’s unique real-time AI-based (Artificial Intelligence) sys...

How to connect the AirVisual Pro to Wi-Fi?

To connect the AirVisual Pro to Wi-Fi, you have 2 options:   1- Usi...

Higher pollution indoors than outdoors?

There are many reasons why your indoor air quality might be worse t...

Why does the AirVisual Pro monitor PM2.5 and CO2?

The AirVisual Pro, with it's large screen display, was designed to ...

Why does your AQI differ from other sites?

Air quality can differ from country to country and can be determine...

Is missing data from stations common? How is the missing data treated in this ranking and which countries have bad data quality?

It is not uncommon for hourly measurements to be missing from sourc...

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...

AHAM & CADR (FAQ#14)

AHAM & CADR (FAQ#14) AHAM testing is generally flawed. It calls its...

AirVisual Monitor Setup Guide

Follow this 5-step setup video [https://www.youtube.com/watch?v=AbL...

How far back does the data go?

Data for the Air Visual Series goes back up to 5 years. You can fi...

What is a "Share Code" and where can I find it?

A share code is a unique code for providing others access to the da...

Battery stays at 0% when charging and turns off when unplugged

If an AirVisual Pro is kept disconnected from power for an extended...

Apple Watch Troubleshooting

IQAir AirVisual's latest Apple Watch app release will help to ensur...

AirVisual Pro maintenance and sensor recalibration

The AirVisual Pro is an industry-grade air pollution monitor [http:...

The CO2 levels are high in my bedroom during the night, what should I do?

The best is to measure your bedroom and your children's bedroom to ...

Does the AirVisual Pro have an indoor & outdoor sensor?

The AirVisual Pro only comes with one PM2.5 sensor. Outdoor informa...

My AirVisual Pro shows 'No recent data' for Outdoor air quality

If your AirVisual Pro's Indoor/Outdoor comparison screen stops disp...

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 ...

Download the AirVisual Pro's data using Samba

Start by connecting the AirVisual Pro to a Wi-Fi Network. Connect y...

Why does my data differ from the PurpleAir platform and IQAir platform?

In order to improve the accuracy and reliability of the data report...

Air quality forecast disclaimer

This forecasting model, and all resulting air quality predictions, ...

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...

Air quality ranking disclaimer

This forecasting model, and all resulting air quality predictions, ...

AirVisual Outdoor sensors modules should be replaced how often?

AirVisual Outdoor sensors modules should be replaced how often?

How can I update my AirVisual Pro’s software?

When new software is available, a screen will appear on your AirVis...

How can I access the PM10 measurements from my AirVisual Pro?

The AirVisual Pro's PM2.5 sensor also contains an internal PM10 sen...

Why are some cities and countries not listed in this air quality ranking?

There are several reasons for a city or a country not being part of...

Where can I locate my AQI with out going to the website?

You can locate the air quality index AQI in your area by visiting t...

How many sensor types does AirVisual support?

AirVisual supports more than 50 different sensor types; it is flexi...

Since data measured by AirVisual monitors is used in the ranking, how accurate is AirVisual data?

In order to check the accuracy of AirVisual devices, AirVisual cond...

How accurate is AirVisual’s air quality data?

Machine learning algorithms take care of validating and calibrating...

How many countries are on the AirVisual Platform?

There are over 140 countries, regions and territories are on AirVis...

AirVisual Pro Dimensions & Weight

The AirVisual Pro's dimensions are 21.3cm x 11.5cm x 8.3cm. Dimensi...

How many cities have air quality data on the AirVisual Platform?

The AirVisual Platform has air quality data from more than 10,000 c...

What does the asterisk (*) mean on some locations' AQI?

Whilst the world's coverage of ground-based air monitoring stations...

Can I go outside when its moderate air quality?

Moderate AQI levels range from 51-100. Unusually sensitive people s...

Which LCS are supported to publishing data to the AirVisual Platform?

We support all IQAir and Purpleair sensors. We also can add Clarity...

Do you want to calculate your AQI without the 6 pollutants?

Do you want to calculate your AQI without the 6 pollutants?

Why is the AirVisual Pro's screen reading different to what is shown on the app?

Sometimes, it may be the case that your AirVisual Pro's screen may ...

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