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AirVisual Knowledge Base

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Featured Article

Revealing the Invisible: Air Quality Innovation in Ghana’s Volta Region

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Learn how an innovative air quality advocate is using data to tackle air pollution in Ghana’s Volta region. Learn more.

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What is AQI?

AQI (Air Quality Index) measures air pollutant concentration to warn of health risks. Learn more. Read More >

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Battery stays at 0% when charging.

When not being powered for some time, the Air Visual’s battery may not charge normally. Learn more. Read More >

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Solutions for high CO2 levels at night.

Proper ventilation and air purifying can help lower CO2 levels that can spike at night. Learn more. Read More >

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

An asterisk may be visible on some location’s AQI. Learn more. Read More >

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Reasons for different AQI numbers.

Here are some reasons that AirVisual and AirNow may show different air quality numbers. Learn more. Read More >

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

A share code lets others access your AirVisual Node/Pro’s data. Learn more. Read More >

Satellite map with air pollution

New WHO model shows 92% of world’s population breathing dangerous air

Data analysis shows dramatic scale of global exposure to air pollution exceeding WHO recommended "safe" limit Read More >

Air purifiers may help with influenza at home

Air purifiers may help with influenza at home

Gymnast Yewki Tomita: "My performance has improved remarkably"

Gymnast Yewki Tomita: "My performance has improved remarkably"

Dr. Christina Mentes: "Thank you IQAir for giving me my life back."

Dr. Christina Mentes: "Thank you IQAir for giving me my life back."

Deanna Devaney: Sick and tired of being sick and tired, she finally bought the IQAir HealthPro Plus.

Deanna Devaney: Sick and tired of being sick and tired, she finally bought the IQAir HealthPro Plus.

Rick Faugno: Las Vegas Star Praises HealthPro® Plus

Rick Faugno: Las Vegas Star Praises HealthPro® Plus

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