Pearl Square Air Quality Index (AQI) and Hefei Air Pollution | AirVisual

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World Air Quality
View our real-time, 3D animated air pollution map
View our interactive air quality map
Download our free air quality app
Live AQI city ranking
See the most polluted cities around the world
all air quality news
Explore world air quality 2019 Most polluted countries Free website widget Air quality API
Community
Join the movement
All news
What we believe Featured contributors
Products
- Shop Home
  - Best Sellers
    Find a dealer
    Find an IQAir dealer to customize your air quality solutions.
    start
    Find a dealer
    Talk to an Expert
    More Information
- Shop Commercial
  - Best Sellers
    Find a dealer
    Find an IQAir dealer to customize your air quality solutions.
    start
    Find a dealer
    Talk to an Expert
    More Information
Solutions
Home
On-the-go
Offices
Air monitoring
Find a dealer
Find an IQAir dealer to customize your air quality solutions.
start
Find a dealer
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Schools Hospitals & clinics Dental offices Doctors' offices Laboratories Hospitality Museums
Support
Product Support
Warranty Registration
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Sensitive groups should reduce outdoor exercise

Close your windows to avoid dirty outdoor air