Indoor environment

Air-quality monitors

Match the monitor to the pollutants you can act on instead of treating one air-quality score as a complete diagnosis.

The useful question

Which pollutants do you actually need to measure?

Choose the guide that matches your task. Product-specific claims appear only after source and link review.

buying guide

Compare indoor air monitors by the pollutants they detect, the actions their readings support, and the important hazards they cannot identify.

product review

Can the LifeBasis 11-in-1 be a useful budget air monitor? We examine its CO2 and particle sensors, display, calibration, and serious limits.