should have said it at the same time. i'm sure i've posted this in the past. if AirGradient wishes to be taken seriously they need to get on this list:
AFAICT https://www.aqmd.gov/aq-spec/sensors is the same set of what they call "sensors" (but which are actually complete products), just the web page organized a little differently.
Until I see an independent evaluation, AirGradient's claims are just as useless as other vendor's claims.
AQI is based on PM1.0, PM2.5 and PM10 measurement. Their products all (including the Open Air referenced in that page) appear to use Plantower sensors, which measure all 3 sizes.
http://www.aqmd.gov/aq-spec/evaluations/criteria-pollutants/...
AFAICT https://www.aqmd.gov/aq-spec/sensors is the same set of what they call "sensors" (but which are actually complete products), just the web page organized a little differently.
Until I see an independent evaluation, AirGradient's claims are just as useless as other vendor's claims.
I don't understand this bit from the AirGradient page https://www.airgradient.com/research/ :
> Open Air will focus on PM2.5 measurements
AQI is based on PM1.0, PM2.5 and PM10 measurement. Their products all (including the Open Air referenced in that page) appear to use Plantower sensors, which measure all 3 sizes.