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Best Overall: Airthings Wave Plus at Home Depot
"This smart monitor checks for radon and CO2 levels, along with temperature, humidity, air pressure, and more."
Best Budget: EG Air Air Quality Monitor at Amazon
"Its built-in fan continuously measures ambient air for real-time TVOC and formaldehyde concentration readouts."
Best Splurge: uHoo Indoor Air Sensor at Home Depot
"This high-tech gadget checks carbon dioxide, nitrogen dioxide, carbon monoxide, and TVOC levels among other things."
Best Professional-Grade Unit: IQAir AirVisual Pro at Lowe’s
"Laser sensors check for carbon dioxide and super-fine particulate matter measuring under 2.5 microns in size."
Best Battery-Operated: Ecowitt WH0290 Air Quality Monitor at Amazon
"A Honeywell HPM Series particle sensor measures microns and rates your current air quality from good to hazardous."
Best Smart Monitor: Awair Glow C at Amazon
"Fans and air purifiers can be plugged directly into the device and set to automatically activate based on its measurements."
Best Design: Eve Room at Best Buy
"The high-contrast, customizable screen displays its temperature, humidity and total volatile organic compounds readings."
Best Compact: Airthings Wave Mini at Home Depot
"This device—which tests for potentially harmful TVOCs—can be used on its own or to supplement an existing Airthings monitor."
No matter how often you clean, there's a good chance your home has at least some level of indoor air pollution. Dust, dirt, pollen, cleaning chemicals, mold, and bacteria are just a few of the particles that float around both indoors and out. While you can’t see these particles, you may be experiencing their effects if you're frequently ill or have allergies.
With an indoor air quality monitor, you can get a reading of various pollutants. That way, you’ll know whether you can breathe easy or need to take action to clean up your air. If your indoor air is subpar, it may be time to install a new heating or air conditioning system, clean your air ducts, replace your filters, or get an air purifier. So, what are the best air quality monitors available today? Below, you’ll find top-rated indoor air testers designed to give you peace of mind about the air you breathe.
Best Overall: Airthings Wave Plus
Have you tested the radon levels in your home lately? Radon is a naturally occurring radioactive gas found in virtually all homes, and it can be potentially toxic at high levels. The Airthings Wave Plus is the first-ever air quality monitoring system is able to detect radon. But that’s not all—the smart monitor also checks carbon dioxide (CO2) levels, total volatile organic compounds (TVOCs), temperature, humidity, and air pressure.
This battery-operated device holds a charge for up to 16 months and can be installed anywhere in your home. It connects via Bluetooth and syncs to the free Airthings Wave app to give you a comprehensive readout and total control over your home’s air quality. The monitor itself has color-coded indicators that tell you the status of your indoor air. It’s also compatible with Alexa, Google Assistant, and IFTTT smart home devices. Once the indoor air quality monitor is installed and set up, a week-long radon calibration period will begin—which is about how long it takes to get an accurate radon reading.
Best Budget: EG Air Air Quality Monitor
For a more affordable option that gets the job done, consider the Air Quality Monitor from EG Air. This reliable monitoring device accurately measures TVOCs and formaldehyde concentration (CH2O), as well as super-fine dust particles measuring under 2.5 microns in size. When this microscopic dust matter enters the lungs, it can aggravate asthma and make people more prone to illness.
A standout feature of the EG Air Air Quality Monitor is its built-in fan, which continuously measures ambient air for real-time readouts. This portable indoor monitor can be set up and moved around to any area of your house, and it’s also ideal for on-the-go testing in cars, hotel rooms, and rental homes. It runs on a rechargeable lithium 2200mAh battery or a DC 5V power cord. Readouts are displayed on the device’s easy-to-read LCD screen.
Best Splurge: uHoo Indoor Air Sensor
Airborne dust and mold particles can aggravate allergies, cause asthma flare-ups, lead to headaches, and result in several other negative health side effects. With the cutting-edge uHoo Indoor Air Sensor, you don’t have to wonder about the invisible pollutants lurking in your home. While it’s certainly not the cheapest air quality monitor on the market, the advanced device has a whopping nine built-in detectors. It checks your carbon dioxide levels, nitrogen dioxide (NO2), carbon monoxide (CO), TVOCs, PM2.5, temperature, humidity, ozone, and air pressure.
The Indoor Air Sensor from uHoo has a sleek design and it’s surprisingly compact—not much bigger than a standard coffee mug. This high-tech gadget is powered by a multi-core processor and encrypted with 128-bit SSL. You can sync it with your smart home hub and pair it with an air purifier or thermostat for automatic air quality control. The uHoo app is easy to use and offers personalized alerts, tips, and room-to-room insights about the air in your home. If you want to invest in improving your indoor air quality, this is the product to get.
Best Professional-Grade: IQAir AirVisual Pro
Are you looking for an air quality monitor that you can count on for an accurate reading? If so, we recommend the IQAir AirVisual Pro Indoor Smart Air Quality Monitor. This professional-grade monitoring system provides precise readings of both indoor and outdoor air. It uses laser sensors to check for carbon dioxide and super-fine particulate matter measuring under 2.5 microns in size, along with indoor temperature and humidity levels.
The bright 5-inch LED display provides straightforward readings of your indoor air and three-day predictive forecasting of outdoor air quality, which is ideal for those with allergies, asthma, or heightened environmental sensitivities. It can also provide air quality data from more than 10,000 cities throughout the world. The AirVisual Pro connects to most smart home devices and can be synced to a smart thermostat or air purification system to automatically adjust for poor indoor air quality. You can access your air quality data at any time on the app, set customizable alerts, and get personalized tips for improving the air in your home.
Best Battery-Operated: Ecowitt WH0290 Air Quality Monitor
Are you partial to wireless tech? If so, you'll want to check out the Ecowitt WH0290 Air Quality Monitor. The device runs on two rechargeable batteries (which come included) and the display screen indicates the unit's battery level. It also has a nifty solar panel that can be used as a backup power source.
This monitoring system uses a Honeywell HPM Series particle sensor to accurately measure PM2.5 and instantly tells you where you stand by rating your current air quality as good, moderate, poor, unhealthy, severe, or hazardous. It also measures your indoor temperatures and relative humidity levels. In addition to homes, this air quality monitor can be used in cars, offices, hotels, rental homes, and virtually any other indoor space.
Best Smart Monitor: Awair Glow C
If you’re searching for a smart home-compatible indoor air quality monitor, you’ve got plenty of options. That said, the compact, highly effective Awair Glow C stands out from the rest. This smart gadget is super easy to use—just plug it into a power outlet to measure the TVOCs, temperature, and humidity in your home. One of the best features of the Awair Glow C is that fans, dehumidifiers, and air purifiers can be plugged directly into it and set to automatically activate based on the device’s measurements.
You can get accurate readouts on the convenient Awair mobile app, which tells you whether your air quality is good, fair, or poor. This makes it easy to determine how the air in your home may be affecting your allergies, asthma, or overall well-being. Additionally, the app provides real-time feedback and tips for improving the air you breathe. You can also customize the device itself with hundreds of light colors—or use it as a nightlight.
Best Design: Eve Room
When it comes to air quality monitors, design might not be your top concern. If you want something that blends in, though, the Eve Room is for you. This device accurately measures and displays the total volatile organic compounds, temperature, and humidity in your home on a high-contrast, customizable screen. You can also review your air quality on the Eve app, which analyzes and presents your data in detailed graphs. This allows you to see how your daily activities and indoor environment influence the air quality in your home.
The Eve Room is powered by a rechargeable battery that lasts up to six weeks. Once you need to recharge, you can do so via a USB power supply. If you want to take full control of your indoor air quality, this is the device to get. Its smart design and sophisticated tracking features make it easy to see not only what you may need to adjust to improve your air and make your home safer, but also the impact your adjustments make over time.
Best Compact: Airthings Wave Mini
If you prefer a compact design but don’t want to compromise on quality, check out the Wave Mini from Airthings. This air quality monitoring device can be used on its own or to supplement an existing Airthings monitor. With intricate sensors, this product tests for potentially harmful TVOCs. It also has a temperature reading and a humidity sensor, which indicates whether your levels are outside the ideal range of 40 to 60 percent.
The Wave Mini runs on three AA batteries (included) and delivers air quality readouts directly to your smartphone or tablet through the Airthings mobile app. Similar to the Wave Plus, this device connects to the app via Bluetooth. You can also check your dashboard anytime by logging into your account on a web browser.