TechGearLab

When it comes to monitoring the air quality of your home, long-term trends and averages are often more telling than individual measurements. This is where the Airthings 2930 Wave Plus, one of our favorite air quality meters, shines. Its user-friendly app allows you to quickly scroll through 48 hour, weekly, monthly, and yearly averages, as well as trend graphs, for all of the contaminants it measures. It is also one of the few consumer meters on the market that measures radon, making it a good choice for those in high-radon areas. If you don't want to constantly check your phone, you can set notifications for when individual contaminants reach critical thresholds. Alternatively, you can just wave your hand over the meter to get a simple green, yellow, or red summary of the overall air quality. This meter can run for many weeks on 2 AA batteries, meaning you can place it anywhere you'd like regardless of outlet access. Finally, it passed our basic accuracy test for CO2 monitoring. 
The biggest strike against this air quality meter is the lack of PM2.5 tracking, meaning it doesn't track the particulate air pollution associated with wildfires and other smoke. Additionally, the meter only communicates with your phone via Bluetooth, so you must be within 30 feet or so to download new data. While not a dealbreaker, on such a capable meter we would have appreciated a WiFi connection that allows for monitoring when on vacation &#40;a WiFi hub is reportedly in the works&#41;. Overall, if radon monitoring is of concern to you and you don't mind the lack of particulate pollution tracking, there isn't much to complain about with the AirThings 2930 Wave Plus.

When it comes to monitoring the air quality of your home, long-term trends and averages are often more telling than individual measurements. This is where the Airthings 2930 Wave Plus, one of our favorite air quality meters, shines. Its user-friendly app allows you to quickly scroll through 48 hour, weekly, monthly, and yearly averages, as well as trend graphs, for all of the contaminants it measures. It is also one of the few consumer meters on the market that measures radon, making it a good choice for those in high-radon areas. If you don't want to constantly check your phone, you can set notifications for when individual contaminants reach critical thresholds. Alternatively, you can just wave your hand over the meter to get a simple green, yellow, or red summary of the overall air quality. This meter can run for many weeks on 2 AA batteries, meaning you can place it anywhere you'd like regardless of outlet access. Finally, it passed our basic accuracy test for CO2 monitoring. 
The biggest strike against this air quality meter is the lack of PM2.5 tracking, meaning it doesn't track the particulate air pollution associated with wildfires and other smoke. Additionally, the meter only communicates with your phone via Bluetooth, so you must be within 30 feet or so to download new data. While not a dealbreaker, on such a capable meter we would have appreciated a WiFi connection that allows for monitoring when on vacation &#40;a WiFi hub is reportedly in the works&#41;. Overall, if radon monitoring is of concern to you and you don't mind the lack of particulate pollution tracking, the AirThings 2930 Wave Plus is a great device.

Best for Most

amazon.com

For those who want to track common air pollutants and CO2, we think the Awair Element Indoor is one of the most useful devices on the market. Within its associated app, you can easily track both the current air quality in your home as well as its long-term trends. You can also enable notifications for when individual air pollutants reach critical levels. The WiFi connection allows you to access these measurements from anywhere with an internet connection, so you can check in and make sure your heater hasn't broken while on vacation. You can also choose to display the measurement of your choice on the front of the meter, allowing you to get an update at a glance. To top it all off, this meter easily passed our baseline accuracy tests for both PM2.5 particulate matter and CO2.
Our main complaint about this model is that it only operates when plugged in, limiting placement in your home. Additionally, the LED display can be somewhat challenging to read, especially in brightly lit settings. Despite these minor gripes, we think the Awair Element Indoor Monitor is a valuable tool for tracking air quality in any home. 

For those who want to track common air pollutants and CO2, we think the Awair Element Indoor is one of the most useful devices on the market. Within its associated app, you can easily track both the current air quality in your home as well as its long-term trends. You can also enable notifications for when individual air pollutants reach critical levels. The WiFi connection allows you to access these measurements from anywhere with an internet connection, so you can check in and make sure your heater hasn't broken while on vacation. You can also choose to display the measurement of your choice on the front of the meter, allowing you to get an update at a glance. To top it all off, this meter easily passed our baseline accuracy tests for both PM2.5 particulate matter and CO2.
Our main complaint with the Awair is that it only operates when plugged in, limiting placement in your home. Additionally, the LED display can be somewhat challenging to read, especially in brightly lit settings. Despite these minor gripes, we think the Awair Element Indoor Monitor is a valuable tool for tracking air quality in any home. 

Budget Pick

walmart

Wirecutter

This device sits on a desk or table and presents indoor air quality readings of particulates, but we’re concerned about its VOC measures and its long-term durability.

Indoor Air Quality Monitor Comparison