- img
- img United Arab Emirates
- img Australia
- img Bahrain
- img Belgium
- img Bulgaria
- img Canada
- img Mainland China
- img Cyprus
- img Czech Republic
- img Denmark
- img Germany
- img Estonia
- img Egypt
- img Spain
- img France
- img Greece
- img China Hong Kong
- img Croatia
- img India
- img Indonesia
- img Iran
- img Ireland
- img Italy
- img Japan
- img Korea
- img Kuwait
- img Latvia
- img Lithuania
- img Luxembourg
- img China Macau
- img Hungary
- img Macedonia
- img Malaysia
- img Netherlands
- img New Zealand
- img Norway
- img Philippines
- img Poland
- img Portugal
- img Qatar
- img Romania
- img Saudi Arabia
- img Switzerland
- img Singapore
- img Slovenia
- img Slovakia
- img Finland
- img Sweden
- img Taiwan
- img Thailand
- img United Kingdom
- img United States
- img Yemen
- img Austria
- img Algeria
- img Angola
- img Bangladesh
- img Ethiopia
- img Europe
- img Ivory Coast
- img Kenya
- img Malta
- img Morocco
- img Nepal
- img Nigeria
- img Oman
- img South Africa
- img Tanzania
- img Uganda
Where do the air quality thresholds come from?
The indoor air quality thresholds are based on several regulatory values recommended by United States Environment Protection Agency (US EPA) and the World Health Organization (WHO).
For outdoor ambient air, the Blueair Friend app uses the thresholds from the US EPA Air Quality Index (AQI).
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