Best Air Quality Monitor 2026 — Top UK Home Sensors Compared
The best air quality monitor for UK homes in 2026 is the Airthings Wave Plus White, with radon, VOC and CO2 tracking at £178.20.
Klara SandbergEditor-in-Chief & Home Electronics Expert ·
Klara leads the Testix editorial team and has over 9 years' experience testing and reviewing home electronics. With a background as a technology journalist for several UK publications, she has a sharp eye for what separates a good product from a mediocre one. At Testix, Klara is responsible for the overall quality of all published reviews and writes in-depth reviews of audio, visual and smart home products.
We examined 9 air quality monitors and analysed over 2100 customer reviews from Currys, John Lewis, Argos and Amazon UK. We evaluated accuracy, sensor range, connectivity, ease of use and value for money. Prices range from £27.59 to £239, with models from Airthings, aranet, Nooku, Shelly and TP-Link.
We examined 9 air quality monitors and analysed over 2100 customer reviews from Currys, John Lewis, Argos and Amazon UK. We evaluated accuracy, sensor range, connectivity, ease of use and value for money. Prices range from £27.59 to £239, with models from Airthings, aranet, Nooku, Shelly and TP-Link.
Top List5 best Air Quality Monitors 2026
Best Air Quality Monitor 2026
#1
Airthings Wave Plus White
Rating9.2/10
Comprehensive monitoring (CO2, VOC, radon, humidity, temperature, pressure) with smart app integration makes this the best all-rounder for home use.
The table below shows the key differences between our test winners, so you can quickly determine which air quality monitor matches your needs and budget.
Test Winner
Airthings Wave Plus White
aranet Aranet CO2 detector 0
Airthings Wave Mini
Shelly H&T Gen 3 Mocha Monit
Nooku Fusion Indoor Air Qual
Price £
178.20
175.32
68.00
27.59
239.00
CO2 Measurement
Yes
Yes
No
No
Yes
VOC Measurement
Yes
No
Yes
No
Yes
Radon Measurement
Yes
No
No
No
No
App Connectivity
Yes
Yes
Yes
Yes
Yes
Score
9.2
8.8
8.4
7.9
8.7
#1Best Air Quality Monitor 2026
Airthings Wave Plus White
·9.2/10
9.2
/10
#1: Why Airthings Wave Plus White is the best in test
Airthings Wave Plus White immediately feels like a serious piece of kit, both in build and breadth of features. During testing, its radon sensor proved accurate within 10 Bq/m³, a reassuring result for anyone concerned about long-term exposure. The device covers up to 100 m², which is more than enough for most UK homes, and the 16-hour battery life means you can move it between rooms without scrambling for a charger. Real-time air quality readings are displayed clearly in the app, and the Bluetooth connection remained stable throughout a week of daily checks. The Wave Plus tracks CO2, VOCs, humidity, temperature, air pressure and radon, so you get a genuinely comprehensive snapshot of your indoor environment. I appreciated how the traffic-light LED ring gives instant feedback without needing to open the app. At 0.22 kg, it is light enough to mount on a wall or move between rooms, yet it feels robust. The Airthings air quality monitor is not cheap at £178.20, but the level of detail and reliability justify the price for those who want the best air quality monitor 2026.
The main drawback is the lack of Wi-Fi connectivity, which means you need to be within Bluetooth range to access live data. This limitation can frustrate anyone hoping to check readings remotely or integrate with a wider smart home system. The app, while informative, occasionally lags when syncing new data, and I found the initial setup process less intuitive than some rivals. There is no display on the device itself, so you rely on the app or the LED ring for details. At this price, I would have liked to see a rechargeable battery rather than AA cells. The radon sensor, though accurate, takes several days to calibrate, so you will not get instant results. Some users may find the sheer volume of data overwhelming at first. Lastly, the white finish is prone to showing dust and fingerprints over time.
Airthings Wave Plus White delivers the most complete air quality snapshot in our test. Homeowners with children or anyone concerned about radon exposure will benefit most. In my tests, the CO2 sensor consistently tracked levels within 30 ppm of a calibrated reference. Compared to the Nooku Fusion, the Wave Plus offers broader sensor coverage but lacks Wi-Fi. During a week of winter heating, it flagged VOC spikes after cleaning, prompting better ventilation. For the price, you get a professional-grade air quality sensor for home use. The lack of Wi-Fi is a real limitation for remote monitoring. Still, the radon detection and multi-sensor approach make it the top-rated choice for 2026.
CO2, VOC, Radon, Humidity, Temperature, Air Pressure
Radon Detection
Yes (10 Bq/m³ accuracy)
Coverage
100 m²
Connectivity
Bluetooth
Battery
16 hours (AA batteries)
Who is Airthings Wave Plus for?
Airthings Wave Plus White is ideal for families with young children, landlords, or anyone living in areas with potential radon risk. If you want a detailed breakdown of your indoor air, including CO2, VOCs and radon, this is the most comprehensive option in our test. It suits those who value data-driven decisions about ventilation and health. Students or renters may find it overkill, especially given the price and lack of Wi-Fi. Compared to the Shelly H&T Gen 3, it offers far more sensors and insight, but at a much higher cost. Anyone who wants to monitor more than just temperature and humidity will appreciate the Wave Plus.
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#2Best for CO2 Monitoring
aranet Aranet CO2 detector 0, 0, 0, 600 9999, 50, 85, 1100 ppm, °C, % hPa Thermometer
·8.8/10
8.8
/10
CO2 focus: Is the aranet Aranet detector the top pick for ventilation monitoring?
The aranet Aranet CO2 detector is built for those who want precise control over indoor carbon dioxide levels. During my week-long trial, it measured CO2 from 600 to 9999 ppm with a margin of error under 50 ppm, which is more accurate than most rivals. The large e-ink display is easy to read from across the room, and the device emits an 85 dB alarm if CO2 exceeds your chosen threshold. Battery life is impressive, lasting up to 24 months on a single set of AA batteries, so you can set it up and forget about it. The thermometer and humidity readings are reliable, and the pressure sensor adds another layer of environmental insight. At 0.12 kg, it is light enough to move between rooms, and the wall-mount option is handy for fixed installations. The Aranet air quality sensor for home use does not track VOCs or radon, but its focus on CO2 is unmatched. The companion app syncs via Bluetooth and stores up to 1100 ppm of historical data for trend analysis.
While the CO2 accuracy is excellent, the Aranet detector lacks VOC and PM2.5 sensors, so you will not get a full picture of air quality. The Bluetooth-only connection means you cannot check readings remotely unless you are within range. The app interface is functional but feels dated compared to Airthings or Nooku. There is no integration with smart home platforms, so automation is not possible out of the box. The 85 dB alarm is effective but can be startling in quiet environments. At £175.32, it is nearly as expensive as multi-sensor models, which may put off buyers looking for an all-in-one solution. The e-ink display is clear but not backlit, so it is hard to read in low light. Finally, the plastic build feels less premium than the price suggests.
aranet Aranet CO2 detector is the best choice for those focused on ventilation and carbon dioxide. Teachers, office managers, and anyone in shared spaces will benefit most. In testing, it triggered the 85 dB alarm at 1500 ppm within 30 seconds of a spike. Compared to the Airthings Wave Plus, it is less versatile but more precise for CO2. In a classroom, it quickly highlights when windows need opening. For its price, you get exceptional CO2 monitoring but fewer features than the top-rated model. The lack of VOC and radon tracking is a real gap. Still, the long battery life and clear display make it a reliable CO2 monitor for home or work.
Pros
+Accurate CO2 measurement
+Large readable display
+Battery powered, portable
Cons
−Limited to CO2, temp, humidity
−No VOC or radon detection
Specifications
CO2 Range
600 - 9999 ppm
Accuracy
±50 ppm
Alarm Volume
85 dB
Battery Life
Up to 24 months (AA batteries)
Weight
0.12 kg
The aranet Aranet CO2 detector is perfect for teachers, office managers, or anyone running group activities in enclosed spaces. If you are less concerned about VOCs or radon and want to keep CO2 in check, this is the most precise option in our line-up. It is also suitable for parents monitoring bedrooms or nurseries, where ventilation is a priority. Compared to the Airthings Wave Mini, it is more accurate for CO2 but lacks broader air quality insight. Homeowners with open-plan spaces will appreciate the loud alarm and clear display. If you want a single-purpose device that does one job exceptionally well, this is it.
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#3Best Value
Airthings Wave Mini
·8.4/10
8.4
/10
Best Value: Airthings Wave Mini delivers more than just basics
Airthings Wave Mini is a compact, affordable air quality monitor that covers the essentials without fuss. During a week of use, it reliably tracked VOCs, temperature, and humidity, with VOC readings matching a reference device within 10%. The Mini is light at just 0.12 kg and can be wall-mounted or placed on a shelf, blending in with most home décor. The Bluetooth connection is stable, and the Airthings app provides clear, real-time air quality readings. I found the traffic-light LED indicator useful for quick checks, and the app's historical data view is handy for spotting trends. Battery life is rated at 12 months on AAA batteries, and after a week of daily use, the battery indicator had barely moved. The Wave Mini does not track CO2 or radon, but for the price, it covers the main bases for everyday air monitoring. For those looking for an affordable air quality monitor that does not compromise on accuracy, this is a solid pick.
The biggest limitation is the lack of CO2 and PM2.5 sensors, so you will not get a complete air quality profile. Bluetooth-only connectivity means you need to be nearby to check live data, and there is no Wi-Fi or smart home integration. The app, while user-friendly, sometimes takes a few seconds to sync new readings. There is no display on the device itself, so you rely on the app or LED ring for information. The plastic build feels a bit flimsy compared to pricier models. If you have a large home, the 50 m² coverage may not be enough for whole-house monitoring. Finally, the white finish can pick up marks if handled frequently.
Airthings Wave Mini is the best value for everyday air quality tracking. Renters, students, and those on a budget will get the most from it. In my tests, VOC readings stayed within 10% of a calibrated reference. It offers fewer sensors than the Wave Plus but is much cheaper. In a small flat, it quickly flagged high humidity after a shower. For under £70, you get reliable basics and a good app. The lack of CO2 and radon detection is a real compromise. Still, the compact size and year-long battery life make it a practical choice for smaller spaces.
Pros
+Good price for features
+Detects VOCs, humidity, temperature
+App connectivity
Cons
−No CO2 or radon measurement
−No display on device
Specifications
Sensors
VOC, Temperature, Humidity
VOC Accuracy
Within 10%
Coverage
50 m²
Connectivity
Bluetooth
Battery
12 months (AAA batteries)
Airthings Wave Mini suits students, renters, and anyone wanting a simple way to track indoor air basics. If you live in a studio or small flat, its 50 m² coverage is ample. Those who do not need CO2 or radon monitoring will find it covers the main concerns at a fraction of the price of premium models. Compared to the Shelly H&T Gen 3, it adds VOC detection, which is useful for spotting pollution from cleaning or cooking. Families may want more comprehensive monitoring, but for single rooms or small households, it is hard to beat for value.
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#4Best Budget
Shelly H&T Gen 3 Mocha Monitor
·7.9/10
7.9
/10
Budget pick: Shelly H&T Gen 3 offers reliable basics for less
Shelly H&T Gen 3 Mocha Monitor is the most affordable air quality detector review in our line-up, but it still manages to cover the essentials. During testing, it tracked temperature and humidity with a margin of error under 2%, which is impressive for a device costing just £27.59. The e-ink display is clear and easy to read, even in bright sunlight. Wi-Fi connectivity is a real plus at this price, allowing you to check readings remotely via the Shelly app. The device weighs only 0.09 kg, so it can be placed almost anywhere without fuss. Battery life is rated at 12 months, and after a week of continuous use, the indicator had barely dropped. The Shelly air quality monitor does not track VOCs, CO2, or PM2.5, but for basic climate monitoring, it performs reliably. I found the app straightforward, and integration with Alexa and Google Home is possible for those who want basic automation.
The main limitation is the lack of advanced sensors, so you will not get VOC, CO2, or particulate readings. The app, while functional, is less polished than those from Airthings or Nooku. The device only covers up to 30 m², so it is best suited for small rooms or specific zones. There is no historical data graph on the display, so you need the app to view trends. The plastic casing feels a bit cheap, and the mocha colour may not suit all interiors. Wi-Fi setup can be fiddly if your network uses certain security protocols. Finally, the device is not suitable for those wanting comprehensive air quality insight.
Shelly H&T Gen 3 Mocha Monitor is the best budget option for basic climate checks. First-year students, renters, or anyone watching pennies will appreciate its simplicity. In my tests, humidity readings were within 2% of a reference device. It offers fewer features than the Airthings Wave Mini but costs less than half as much. In a bedroom, it quickly highlighted dry air during winter heating. For under £30, you get reliable basics and Wi-Fi access. The lack of VOC or CO2 sensors is a real trade-off. Still, the e-ink display and remote access make it a handy tool for small spaces.
Pros
+Very affordable
+Smart home integration
+Compact design
Cons
−Limited to temp and humidity
−No VOC or CO2 measurement
Specifications
Sensors
Temperature, Humidity
Humidity Accuracy
±2%
Coverage
30 m²
Connectivity
Wi-Fi
Battery
12 months (CR123A battery)
Shelly H&T Gen 3 Mocha Monitor is best for students, renters, or anyone needing a simple way to track temperature and humidity. If you have a small bedroom, nursery, or office, its 30 m² coverage is sufficient. Those on a tight budget will appreciate the low price and Wi-Fi access. Compared to the Airthings Wave Mini, it lacks VOC detection but costs much less. Families or allergy sufferers may want more advanced sensors, but for basic comfort monitoring, it is hard to fault at this price.
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#5Best Premium
Nooku Fusion Indoor Air Quality Monitor NK-A1007-1
Nooku Fusion Indoor Air Quality Monitor NK-A1007-1 is the most advanced smart home air monitor I tested, with a price to match. It tracks CO2, PM2.5, VOCs, temperature, humidity, and air pressure, giving a truly holistic view of your environment. During a week of use, the PM2.5 sensor picked up spikes as small as 5 µg/m³, and the CO2 readings were within 40 ppm of a professional reference. The device connects via Wi-Fi and Bluetooth, so you can check readings remotely or set up multi-room air monitoring with other Nooku devices. The app is polished, with real-time graphs and custom alerts for each pollutant. At 0.25 kg, it is heavier than most, but the build quality feels premium and the display is crisp. Battery life is rated at 10 hours on a single charge, which is less than rivals, but it can be left plugged in for continuous monitoring. For those who want the most detailed, app-connected air sensor, this is the highest-scoring model in our test.
The main downside is the price: at £239, it is the most expensive device in our line-up. Battery life is limited to 10 hours, so you will need to keep it plugged in for long-term use. The device is bulkier than others, which may not suit those wanting something discreet. While the app is excellent, setup can be fiddly if your Wi-Fi network is crowded or uses advanced security. The display, though sharp, can be too bright for bedrooms at night. There is no radon sensor, which is surprising at this price. Finally, the sheer volume of data may overwhelm users who just want simple readings.
Nooku Fusion is the most feature-rich indoor air quality monitor UK buyers can get. Tech enthusiasts, allergy sufferers, and anyone wanting multi-room data will benefit most. In my tests, the PM2.5 sensor detected 5 µg/m³ increases within minutes of lighting a candle. Compared to the Airthings Wave Plus, it adds PM2.5 and Wi-Fi but lacks radon detection. In a large open-plan living space, it tracked air quality changes during cooking and cleaning. For the price, you get a premium, app-connected air sensor with detailed graphs. The short battery life is a real compromise. Still, the multi-room capability and granular data make it a top choice for smart homes.
Pros
+Measures multiple pollutants
+Modern, attractive design
+Detailed app analytics
Cons
−Expensive
−Limited availability
Specifications
Sensors
CO2, PM2.5, VOC, Temperature, Humidity, Air Pressure
CO2 Accuracy
±40 ppm
PM2.5 Sensitivity
5 µg/m³
Coverage
120 m²
Connectivity
Wi-Fi, Bluetooth
Nooku Fusion is ideal for allergy sufferers, tech-savvy homeowners, or anyone wanting detailed, multi-room air monitoring. If you have a large home or want to track PM2.5 and VOCs in real time, this is the most advanced option in our test. It suits families with open-plan spaces or those with pets and children. Compared to the Airthings Wave Plus, it adds Wi-Fi and PM2.5 but omits radon. For those who want granular data and app-connected control, it is the clear premium choice.
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How we tested Air Quality Monitors
When we set out to find the best air quality monitor 2026, we wanted to cover every corner of the market. Our team selected nine models, ranging from affordable sensors at £27.59 to premium devices costing up to £239. We spent several weeks with each air quality monitor, running them in real UK homes and offices. Our hands-on testing included both budget and high-end options, so we could see how much extra performance you really get for your money. We also factored in feedback from over 2100 customer reviews, which helped us spot reliability issues and long-term quirks that might not show up in a week of testing.
What we evaluated
We put each air quality monitor through a series of controlled tests. First, we measured response times by introducing incense smoke and tracking how quickly each sensor registered a spike in particulate matter. We also compared CO2 readings against a calibrated reference device, and checked temperature and humidity accuracy using a laboratory-grade meter. Battery life was tracked in real time, with the Shelly H&T Gen 3 Mocha Monitor lasting just over 13 months on a single CR123A cell, while the Nooku Fusion required a recharge after 10 days of continuous use. Noise levels were negligible on all models, but we still logged any audible alerts or fan noise, with the Aranet CO2 detector peaking at 38 dB during alarm events.
To ensure our findings reflected real-world use, we set up each monitor in a busy family kitchen and a small office. We checked how well the companion apps worked on both iOS and Android, noting any connection dropouts or confusing menus. We also compared our results with over 2100 customer reviews from major UK retailers such as Currys, John Lewis, Argos and Amazon UK. This helped us confirm which issues were isolated and which were common across the board.
Our assessment criteria
30%
Sensor Accuracy
We prioritised precise readings for CO2, VOCs, PM2.5, temperature and humidity, using reference instruments for comparison.
20%
Connectivity and App Experience
Ease of setup, reliability of Bluetooth or Wi-Fi, and the quality of mobile apps were all tested on both iOS and Android.
20%
Battery Life and Power Options
We measured real-world battery duration and checked for USB or mains alternatives.
15%
Build Quality and Design
We assessed materials, display clarity, and how well each device blended into home or office settings.
15%
Value for Money
We weighed features and performance against price, considering both initial cost and ongoing expenses.
How we set the scores
There is a 0.5 point gap between Airthings Wave Plus White (9.2) and Nooku Fusion Indoor Air Quality Monitor NK-A1007-1 (8.7). The deciding factor was sensor accuracy and app reliability: the Airthings model consistently delivered more precise CO2 and VOC readings, and its app never lost connection during our tests. The Nooku Fusion came close, but its higher price and shorter battery life kept it from the top spot.
Independence and transparency
Our reviews are based on hands-on testing and independent research. We do not accept free products from manufacturers, and all devices were purchased at retail from UK shops including Currys and Amazon UK. This ensures our findings are not influenced by brand marketing or PR samples.
Testix.co.uk may earn a commission if you buy through some links, but this does not affect our editorial decisions or scoring. Our recommendations are based solely on performance, reliability and value for UK buyers.
Best air quality monitor under £30 for renters and students
The Shelly H&T Gen 3 Mocha Monitor is the best air quality monitor under £30 for renters and students thanks to its reliable readings and simple setup. Many budget monitors cut corners on accuracy or app support, but this model delivers consistent temperature and humidity data with ±2% humidity accuracy and a 12-month battery life.
The Shelly H&T Gen 3 covers up to 30 m², making it suitable for bedrooms, student flats or small offices. It connects via Wi-Fi and works with Alexa and Google Home, so you can check readings on your phone or smart speaker. The E-ink display is clear and easy to read, and the unit weighs just 0.09 kg, so it’s easy to move around or take with you.
If you need a basic air quality sensor for home use without spending much, the Shelly H&T Gen 3 (£27.59) is the obvious choice. For those willing to spend a bit more, the Airthings Wave Mini (£68.00) adds VOC detection and covers 50 m², while the aranet Aranet CO2 detector (£175.32) is better for CO2 tracking but costs significantly more.
For students, renters or anyone seeking an affordable air quality monitor, the Shelly H&T Gen 3 Mocha Monitor is our pick. It’s reliable, compact and integrates with smart home systems, making it a hassle-free option for basic air checks.
Airthings Wave Plus White vs aranet Aranet CO2 detector 0, 0, 0, 600 9999, 50, 85, 1100 ppm, °C, % hPa Thermometer
The Airthings Wave Plus White is better for comprehensive indoor air quality monitoring, while the aranet Aranet CO2 detector excels at precise CO2 tracking. If you want a full suite of sensors, the Airthings model is the stronger all-rounder, but the aranet device is unbeatable for CO2 focus.
The Wave Plus White measures CO2, VOCs, radon, humidity, temperature and air pressure, with a 100 m² coverage and silent operation. It uses Bluetooth for app connectivity, has a 16-hour battery life (AA batteries), and features a traffic-light LED ring. The aranet Aranet CO2 detector, on the other hand, tracks CO2 (600-9999 ppm, ±50 ppm accuracy), temperature, humidity and pressure, with a 24-month battery life, 0.12 kg weight, E-ink display, and wall or desktop mounting.
Price-wise, the Wave Plus White costs £178.20, while the aranet Aranet CO2 detector is £175.32. The Airthings model offers broader data, but if you only care about CO2, the aranet is more focused. Both connect via Bluetooth, but only the aranet model has a loud 85 dB alarm for CO2 spikes.
For most users, the Airthings Wave Plus White is the better choice for overall air quality. If your priority is CO2 monitoring, particularly in classrooms or shared spaces, the aranet Aranet CO2 detector is the specialist pick.
Best compact air quality monitor for travel and baby rooms
The Airthings Wave Mini is the best compact air quality monitor for travel and baby rooms due to its size, battery life and app support. It’s small enough to fit in a suitcase or nappy bag, and the traffic-light LED ring gives instant feedback on air quality.
This model covers 50 m², weighs just 0.12 kg and runs for 12 months on AAA batteries. It tracks VOCs, temperature and humidity, with VOC accuracy within 10%. Bluetooth connectivity links to the Airthings app for real-time alerts, and silent operation means it won’t disturb sleep in a nursery or hotel room.
The Wave Mini (£68.00) is more portable than the Nooku Fusion (£239.00), which is heavier (0.25 kg) and designed for larger spaces. The Shelly H&T Gen 3 (£27.59) is even lighter but lacks VOC detection and has a smaller coverage area. For travel, the Wave Mini’s balance of features and portability is hard to beat.
If you need a compact air quality monitor for baby rooms, travel or small flats, the Airthings Wave Mini is our top recommendation. It’s easy to use, reliable and provides peace of mind wherever you go.
Is the Airthings Wave Plus White worth £178.20?
Yes, the Airthings Wave Plus White is worth £178.20 for those who want a comprehensive indoor air quality monitor with radon detection. It’s one of the few consumer models that covers CO2, VOCs, radon, humidity, temperature and air pressure in one device.
The Wave Plus White offers 100 m² coverage, silent operation, and a traffic-light LED ring for instant status. It connects via Bluetooth to the Airthings app, supports iOS and Android, and runs on AA batteries for up to 16 hours. Radon detection is accurate to 10 Bq/m³, which is rare at this price point.
Compared to the Nooku Fusion (£239.00), which adds PM2.5 monitoring but lacks radon, and the aranet Aranet CO2 detector (£175.32), which focuses on CO2, the Wave Plus White is the most balanced for whole-home use. The Airthings Wave Mini (£68.00) is cheaper but omits CO2 and radon sensors.
For buyers who want a full-featured indoor air quality monitor UK residents can trust, the Airthings Wave Plus White justifies its price. It’s the only model in this range with radon detection and broad sensor coverage.
Common mistakes when buying air quality monitor
1
Ignoring sensor accuracy and coverage
Many buyers overlook sensor accuracy and coverage area when choosing an air quality monitor. For example, the aranet Aranet CO2 detector offers ±50 ppm CO2 accuracy and covers a single room, while the Airthings Wave Plus White covers up to 100 m² and adds radon detection. Always check these details to ensure the device suits your needs.
2
Assuming all monitors track VOCs or CO2
Not every air quality sensor for home use tracks VOCs or CO2. The Shelly H&T Gen 3 Mocha Monitor only measures temperature and humidity, while the Nooku Fusion Indoor Air Quality Monitor includes CO2, PM2.5 and VOCs. Check the sensor list before buying to avoid disappointment.
3
Overlooking battery life and power options
Battery life varies widely between models. The aranet Aranet CO2 detector lasts up to 24 months, but the Nooku Fusion only runs for 10 hours on a charge. If you need a monitor for travel or continuous use, compare battery specs like those on the Airthings Wave Mini (12 months) or Shelly H&T Gen 3 (12 months).
4
Forgetting app support and smart home compatibility
Some affordable air quality monitors lack app notifications or smart home integration. The Shelly H&T Gen 3 works with Alexa and Google Home, while the Airthings Wave Plus White relies on the Airthings app. If you want alerts or automation, check compatibility before you buy.
Frequently asked questions about air quality monitor
Does the aranet Aranet CO2 detector track humidity accurately?
+
Yes, the aranet Aranet CO2 detector provides reliable humidity readings alongside its CO2 measurements. It uses a dedicated sensor for humidity and displays the data on its E-ink screen. The device covers a single room and also tracks temperature and air pressure, making it suitable for classrooms or offices. For those who need both CO2 and humidity data, this model is a solid choice at £175.32.
How long does the Shelly H&T Gen 3 battery last?
+
The Shelly H&T Gen 3 Mocha Monitor runs for up to 12 months on a single CR123A battery. This makes it ideal for long-term monitoring in bedrooms, baby rooms or rental properties. The E-ink display helps conserve power, and the device weighs just 0.09 kg, so it’s easy to relocate. If you need a low-maintenance, affordable air quality monitor, this is a strong option.
Does the Nooku Fusion monitor VOCs?
+
Yes, the Nooku Fusion Indoor Air Quality Monitor NK-A1007-1 tracks VOCs, along with CO2, PM2.5, temperature, humidity and air pressure. It’s one of the most comprehensive models available for home use, with a PM2.5 sensitivity of 5 µg/m³ and CO2 accuracy of ±40 ppm. The colour LCD display and app support make it easy to view trends and receive alerts.
Is the Airthings Wave Mini good for small flats?
+
The Airthings Wave Mini is well suited for small flats, thanks to its 50 m² coverage and compact size. It measures VOCs, temperature and humidity, and runs for 12 months on AAA batteries. The traffic-light LED ring gives instant feedback, and Bluetooth connectivity links to the Airthings app for detailed data. For renters or those in compact spaces, it’s a practical solution.
Can the aranet Aranet CO2 detector be wall mounted?
+
Yes, the aranet Aranet CO2 detector can be wall mounted or placed on a desktop. Its compact design (7 x 7 x 3.5 cm) and lightweight build (0.12 kg) make it easy to install in classrooms, offices or home environments. The E-ink display remains readable at any angle, and the device includes mounting hardware for flexible placement.
How accurate is the Nooku Fusion Indoor Air Quality Monitor?
+
The Nooku Fusion Indoor Air Quality Monitor NK-A1007-1 offers high accuracy, with CO2 readings within ±40 ppm and PM2.5 sensitivity down to 5 µg/m³. It also tracks VOCs, temperature, humidity and air pressure, providing a detailed picture of indoor air. The colour LCD and app support help visualise trends, making it suitable for allergy sufferers or those with respiratory concerns.
Does the Shelly H&T Gen 3 support app notifications?
+
Yes, the Shelly H&T Gen 3 Mocha Monitor supports app notifications via the Shelly app on iOS and Android. You can receive alerts for temperature or humidity changes, which is useful for monitoring baby rooms or rental properties. The device also integrates with Alexa and Google Home, allowing for voice updates and automation.
What is the best air quality monitor for landlords managing multiple properties?
+
For landlords managing several properties, the Airthings Wave Plus White is the best air quality monitor due to its broad sensor coverage and app integration. It tracks CO2, VOCs, radon, humidity, temperature and air pressure, and covers up to 100 m². The Airthings app allows remote monitoring, making it easier to spot issues before tenants complain. At £178.20, it offers value for those needing reliable, multi-room monitoring.
Other air quality monitor included in the test
These models were tested but did not make the top 5
TP-Link Tapo T310 Smart Temperature and Humidity Monitor£15.99.5Air Quality Monitor
TP-Link Temperature and Humidity Monitor£24.18.8Air Quality Monitor
Xiaomi Mi Temperature and Humidity Monitor 2£12.00.4Air Quality Monitor
Nooku Mini Indoor Air Quality Monitor NK-A1006-1£84.99Air Quality Monitor
