panorama of mountain forests with group of hikers putting arms on each other
Our challenge
Air pollution causes 1 in 9 deaths, and huge parts of the world still lack access to basic air quality data. IQAir is working to change this by empowering the world to breathe cleaner air.
We operate the world's largest real-time air quality data and community platform, comprising over 80,000 public sensors worldwide on five continents. IQAir engages citizen scientists, organizations, and governments to contribute data and fight environmental injustice by increasing the breadth and depth of air quality data where it’s most needed. We partner with global organizations like the United Nations and Greenpeace to educate people worldwide about the impact of air pollution.
Our data contributors change the world

Two types of contributors

Individuals/Citizen Scientists

Abid in Pakistan

Join over 10,000 individuals and global citizen scientists contributing data to this free, real-time air quality platform. Crowdsourced data from individuals like you help fill the data gaps.

It's easy. Become a Contributor now.


Main Astronomical Observatory in the Ukraine

We work with many organizations and governments around the world to provide Community Air Monitoring. Our free, real-time air quality platform provides their constituents access to local air quality data.


See more Featured Contributors!

Low-cost sensors reduce barriers

Federal equivalent method (FEM) monitors can cost over tens of thousands of dollars. However, low-cost sensors can provide highly accurate comparable data for only a couple of hundred dollars. Low-cost monitors can fill the air quality data gaps in underserved areas, as they are less costly, more easily accessible, easy to operate, and can be crowdsourced.
By simply purchasing an outdoor, low-cost sensor, individuals and citizen scientists can make an immediate impact in communities, providing needed public stations in areas where there are no monitors. In less than two hours, you can help your community with essential crowdsourced data. Become a Contributor today.
Whether a community organization, non-profit, or government agency, IQAir can provide full-service support and infrastructure to create and maintain air quality network(s). Creating Community Air Monitoring, IQAir provides turn-key air quality monitoring networks with low-cost sensors with optional reference monitors.
Learn more

How you can help


A Host sets up and maintains air quality station(s). You can receive training and remote or onsite support.


A Sponsor has generously provided funding to obtain, install and maintain sensor(s) in partnership with the Host.


A Contributor serves as both a Host and a Sponsor, who not only obtains sensor(s), but also maintains the sensor(s).

blue sky with wispy clouds
Choose a monitor
Ready to get started? Low-cost monitors make air quality monitoring easy. Choose a monitor and start publishing air quality information in a few simple steps.
AirVisual Outdoor
Weatherized outdoor air quality monitor with modular, field-swappable PM and CO₂ sensors.


  • PM2.5
  • PM1
  • PM10
  • CO₂
  • Temperature
  • Humidity
Learn More
A proven air quality monitoring solution for home enthusiasts and air quality professionals alike.


  • PM2.5
Learn More
Clarity Node-S
A sensing-as-a-service solution inclusive of solar and battery powered hardware, global cellular connectivity, and data assurance support for government agencies, schools, and community groups. Not intended for individual consumer purchases.


  • PM2.5
  • NO₂
Learn More
Is your type of monitor not yet supported here? Please contact us.
Become a Contributor
How to get started
Already have a monitor?
Register your device on the app or AirVisual dashboard
Monitor registration process
Don’t own a monitor yet?
Get a monitor that suits your project to get started
IQAir's AirVisual Outdoor
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