Airthings 325 Corentium Home 2 vs Amazon Smart Air Quality Monitor

The Airthings 325 Corentium Home 2, if radon is a concern. It is the better reviewed of the two, has a screen, runs on batteries, works with Google Home, Alexa and Home Assistant and carries a 5-year warranty. The Amazon Smart Air Quality Monitor is the better choice for VOCs, PM2.5 and CO in an Alexa home.

The sensors. The Airthings 325 Corentium Home 2 is a radon monitor that also reads temperature and humidity, while the Amazon Smart Air Quality Monitor measures VOCs, PM2.5, carbon monoxide, temperature and humidity and has no radon sensor.

For radon, owners say yes. The Airthings 325 Corentium Home 2 is praised for continuous monitoring with Good/Fair/Poor readouts and results close to test kits, while the trade-offs are Bluetooth-only access and a premium price. The Amazon Smart Air Quality Monitor does not measure radon, so it is not an alternative for that job.

No. The Amazon Smart Air Quality Monitor measures VOCs, PM2.5, carbon monoxide, temperature and humidity. For radon you need a dedicated monitor such as the Airthings 325 Corentium Home 2.

Homeowners in radon-prone areas who want to follow radon over weeks and months, check a mitigation system, and read the level on a screen or in Google Home, Alexa or Home Assistant.

Alexa households that want an affordable way to watch VOCs, PM2.5 and carbon monoxide and let routines react to them, and that do not need a screen or radon readings.