Powered by a micro-USB cable and measuring 1.77 inches high and 2.56 inches across, the cylindrical Smart Air Quality tracks five air quality factors: humidity, temperature, particulate matter (tiny particles and droplets that can be harmful when inhaled), volatile organic compounds (gases that are emitted by hairspray, cleaning fluids, and other common household products), and carbon monoxide.
The Smart Air Quality Monitor can transmit its findings to the Alexa app, where you can track a history of your indoor air quality or get a real-time snapshot.
If the device detects poor air quality in the vicinity, its integrated LED will glow red, and it can trigger a notification via the Alexa app. You can also set Alexa to warn you of unsafe air quality over your Echo smart speakers, while Echo Show displays can chart your air quality visually.
While the Amazon Smart Air Quality Monitor is far more affordable than our favorite indoor air quality monitors, it also lacks some of their functionality. For example, the best air quality monitors can detect radon (the leading cause of lung cancer in the U.S.) and carbon dioxide, as well as particulate matter as small as 1 micon (PM1) in diameter. The Smart Air Quality Monitor can check for VOCs, carbon monoxide, and PM2.5 (particulate matter as small as 2.5 microns), but it will miss particles smaller than that.
Still, for those who aren’t willing to spend $200 and up on an air quality monitor, the Amazon Smart Air Quality Monitor is certainly better than nothing, and because the monitors are so affordable, you could deploy multiple units throughout your home without breaking the bank.
Ben has been writing about technology and consumer electronics for more than 20 years. A PCWorld contributor since 2014, Ben joined TechHive in 2019, where he covers smart speakers, soundbars, and other smart and home-theater devices. You can follow Ben on Twitter.