Air Quality Index (AQI) Calculator
Convert your PM2.5 sensor reading to the Air Quality Index using the official EPA breakpoint formula. Get color-coded health guidance, action recommendations, and see how your reading compares to WHO guidelines.
PM2.5 is particulate matter 2.5 microns or smaller. Most air quality monitors display this reading.
Monitor Your Air Quality
Track PM2.5, CO2, and other pollutants in real time with an indoor air quality monitor.
Temtop M2000 Air Quality Monitor
$169
Measures PM2.5, CO2, and HCHO. Real-time AQI display.
View on Amazon →Qingping Air Monitor Lite
$79
PM2.5, CO2, temperature, and humidity. Apple HomeKit compatible.
View on Amazon →As an Amazon Associate, we earn from qualifying purchases.