CO2 Level Interpreter
Enter your CO2 monitor reading to instantly understand what it means for your health and productivity. Get color-coded feedback, actionable recommendations, and see how your air compares to common environments.
Typical indoor readings range from 400 to 2,500 ppm. Outdoor air is around 420 ppm.
Top CO2 Monitors for Accurate Readings
Get reliable CO2 readings with these highly-rated monitors. An accurate monitor is the first step to healthier indoor air.
Aranet4 Home Sensor
$189
Best overall accuracy & e-ink display
View on Amazon →Temtop M2000
$169
CO2, PM2.5, and HCHO detection
View on Amazon →INKBIRD CO2 Monitor
$79
Budget-friendly with alerts
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