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Air Quality Monitors Compared: AirGradient vs. Purple Air
AirGradient air quality monitoring.
There are now a significant number of studies available comparing the Purple Air monitors against reference instruments and proposing correction formulas to make them more accurate. This is confirmed by our global co-location project in which we test the accuracy of the AirGradient Open Air monitors worldwide. The advantages of the Purple Air are its better map application, SD card storage, and RGB LED (Flex model).
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