Kaiterra Laser Egg+ Chemical
Accurate and full-featured
The Kaiterra Laser Egg+ Chemical monitors particulates and gases, the two main forms of air pollution in homes—and its app and smart functionality clearly tell you if there’s a problem.
With its clean design, simple and efficient physical controls and app, and smart functionality, the Kaiterra Laser Egg+ Chemical provides the most versatility and capability of the monitors we tested. The app itself was the best we tested: stable and logically laid out, with air quality readings that were clearly displayed. And the device is easy to use and live with. A single button cycles through the Kaiterra’s readings, and at night, you can shut off the display—while the device continues to monitor the air—so it won’t disturb your sleep. And because the Kaiterra has Apple HomeKit and IFTTT support built in—with Google Home and Alexa expected by the end of 2019—you can program the device to automatically turn on a smart air purifier or central AC in the event of poor air quality. Like many of the best monitors we tested, the Kaiterra met a primary requirement to measure several types of pollution that have a meaningful impact on air quality.
Temtop M10 Air Quality Monitor
Simple and solid
The Temtop M10 is accurate and uncomplicated: With no Wi-Fi connectivity or app, this device simply sits on a desk or table and lets you monitor your air quality readings yourself.
If you don’t need smart functionality or an app, and you just want to be able to glance at a monitor and know what’s going on in your air, we recommend the Temtop M10. Like the Kaiterra, it measures particulate and gaseous pollutants, and the two gave virtually identical readings in our testing. Its bright display can be read from across a room, and its tiny size and simple form make it easy to keep on a desk or bedside table. Lacking Wi-Fi connectivity, it has no associated app, let alone smart functionality. But that’s not an inherent weakness. It’s just a different approach to air quality monitoring that we think will satisfy many people’s needs. And the M10 usually costs less too.