10 Best Air Quality Meters 2025 in the United States

The Airthings 2960 View Plus is a comprehensive air quality monitor that measures a wide range of pollutants, including radon, PM2.5, CO2, VOCs, humidity, temperature, and air pressure. The device is WiFi-connected and requires the Airthings app for full functionality, allowing users to access live data and receive notifications about air quality.

Its always-on sensors provide continuous monitoring, which is beneficial for those wanting to keep a close eye on their indoor air environment. The device promises high accuracy in detecting radon, a significant concern as it is a leading cause of lung cancer among non-smokers.

The monitor is battery-powered (with an average battery life of two years) and offers a cable-free setup, enhancing its portability and ease of placement in various locations. It features a customizable eInk display and is compatible with devices like Alexa and the Airthings Hub, which adds to its versatility. Additionally, the product includes a five-year warranty (upon registration).

The Airthings 325 Corentium Home 2 is a reliable and easy-to-use radon detector designed specifically for home use. It measures radon gas, a harmful pollutant that can cause health issues over time. This device offers proven accuracy with technology trusted by professionals, making it a strong choice if your main concern is radon monitoring. It connects via Bluetooth to your smartphone or tablet, allowing you to see radon levels and trends through clear graphs in the Airthings app. This helps you understand how radon fluctuates in your home and when to take action.

In addition to radon, it also tracks temperature and humidity, which can be helpful but might be basic compared to full indoor air quality meters measuring multiple pollutants. The detector shows visual alarms but relies mostly on the app for detailed data and advice, which keeps the device simple but might require smartphone use for full benefits. It runs on two AA batteries included in the package, making it portable and easy to place anywhere without worrying about power outlets.

With its small size and lightweight design, it’s convenient to move around and monitor different rooms. Since it focuses solely on radon (with no detection for other gases or particulates), it’s best suited for users who specifically want to track this dangerous gas rather than overall air quality. The long-term monitoring feature ensures continuous data without needing lab tests, providing peace of mind. If you want a straightforward, portable radon detector with smart connectivity and reliable results, this model is a good choice. However, if you need a broader air quality meter covering multiple pollutants, you might want to consider other options.

The SwitchBot Meter Pro CO2 is a versatile 5-in-1 air quality meter designed mainly for indoor use, measuring CO2 levels, temperature, humidity, and providing comfort level info all on a large, clear 92mm display. It uses a Swiss-made NDIR sensor that offers good accuracy (±50 ppm) and fast response, updating readings every second, which helps you keep close tabs on your environment. The device stands out with its customizable alarms that notify you via sound, screen alerts, and app notifications (if paired with the optional Hub), helping you take timely action when air quality dips.

In terms of power, it runs on two included AAA batteries, which can last up to a year, making it easy to maintain without frequent charging. The compact size and light weight make it portable and suitable for various spaces like homes, offices, and even cars. It also includes mounting options for flexible placement. The monitor focuses mainly on CO2 and basic indoor air parameters and does not measure other common pollutants like VOCs or particulate matter, which might be a drawback if you need broader air quality data. Some features like app alerts require additional hardware (the Hub), which adds to the cost and setup complexity, and the battery-powered design means you’ll need to replace batteries periodically, unlike some models with rechargeable options.

This meter represents a solid choice if your main concern is tracking CO2 and indoor comfort with easy-to-read data and alerts, especially in home or office settings where portability and simple use are important.