Best Air Quality Monitors UK (2026)
An air quality monitor is only useful if it reacts quickly to genuine changes and reports them clearly, not just when the air is already visibly bad. This guide is based on Expert Reviews' tested roundup (published 3 December 2024), where testers set up two or more monitors side by side in a three-bedroom detached house, tracking how well each followed changes in air quality over a week, then moved them into a smaller room and exposed them to drying paint, smoke, deodorant sprays and moisture from a humidifier to see how quickly each reacted and issued warnings.
We have not hands-on tested these products. Our picks are based on published independent tests and reviews, listed at the bottom of this page. How we pick.
Our top pick
Airthings View Plus
Best overall
Expert Reviews' top pick, a premium monitor with an onscreen e-paper display for real-time readings and cloud dashboard integration for tracking trends over time. It's the only monitor here that also tracks radon, and can act as a hub for other Airthings devices, running up to two years on 6 AA batteries or via USB-C.
- Tracks radon as well as PM2.5 and VOCs
- Real-time e-paper display
- Cloud dashboard for long-term trends
Quick comparison
| Product | Best for | Key spec | Buy |
|---|---|---|---|
| Airthings View Plus | Best overall | VOCs, PM2.5, radon, temperature, humidity, air pressure; 2.9in e-paper display; Wi-Fi and Bluetooth | Check price |
| Amazon Smart Air Quality Monitor | Best for tracking and alerts | VOCs, CO, PM2.5, temperature, humidity; LED indicator; Alexa integration | Check price |
| Airthings Wave Plus | Best for VOC and radon tracking | VOCs, CO2, radon, temperature, humidity, air pressure; coloured ring indicator; Bluetooth 5 | Check price |
| Eve Room | Best for iPhone users | VOCs only; 200x200px E Ink display with star rating; HomeKit exclusive | Check price |
| Temtop M10i | Best value | VOCs, PM2.5, formaldehyde (HCHO); 3.5in mono LCD; Wi-Fi | Check price |
| Airthings Wave Mini | Best entry-level | VOCs, mould-risk detection, temperature, humidity; single LED indicator; Bluetooth 4.2 | Check price |
Our picks in detail
Best overall
Airthings View Plus
Expert Reviews' top pick, a premium monitor with an onscreen e-paper display for real-time readings and cloud dashboard integration for tracking trends over time. It's the only monitor here that also tracks radon, and can act as a hub for other Airthings devices, running up to two years on 6 AA batteries or via USB-C.
- Sensors
- VOCs, PM2.5, radon, temperature, humidity, air pressure
- Display
- 2.9in e-paper
- Power
- 6x AA batteries (up to 2 years) or USB-C
- Price guide
- £250 (at time of writing)
Pros
- Tracks radon as well as PM2.5 and VOCs
- Real-time e-paper display
- Cloud dashboard for long-term trends
- Can act as a hub for other Airthings units
Cons
- Most expensive monitor on test
Best for tracking and alerts
Amazon Smart Air Quality Monitor
Expert Reviews found this the most affordable option on test, offering weekly, daily and hourly reports plus alert capability through the Alexa app. It's always plugged in via micro-USB and uses a simple green/amber/red LED rather than a detailed screen, but requires the Alexa ecosystem to get the most from it.
- Sensors
- VOCs, CO, PM2.5, temperature, humidity
- Display
- LED indicator only
- Connectivity
- Wi-Fi, Bluetooth, Alexa integration
- Price guide
- £70 (at time of writing)
Pros
- Most affordable option on test
- Detailed reports and alerts via the Alexa app
- Tracks CO as well as VOCs and PM2.5
Cons
- No detailed onscreen display, LED only
- Best suited to households already using Alexa
Best for VOC and radon tracking
Airthings Wave Plus
Expert Reviews found this gives comprehensive detection across VOCs, CO2 and radon, missing only PM2.5 particulate tracking compared with the View Plus. Its app offers trend views from 12 hours up to a full year, plus IFTTT automation support, running 12-15 months on 2 AA batteries.
- Sensors
- VOCs, CO2, radon, temperature, humidity, air pressure
- Display
- Coloured ring indicator
- Power
- 2x AA batteries (12-15 months)
- Price guide
- £180 (at time of writing)
Pros
- Tracks radon and CO2 alongside VOCs
- Long battery life
- Detailed trend views from 12 hours to a year
- IFTTT automation support
Cons
- No PM2.5 particulate tracking
Best for iPhone users
Eve Room
Expert Reviews found this compact at just 54x54x15mm, with a simple E Ink display showing a star rating rather than raw numbers, making it easy to read at a glance. It's HomeKit-exclusive with no third-party ecosystem support, and only tracks VOCs rather than PM2.5 or radon.
- Sensors
- VOCs only
- Display
- 200x200px E Ink with star rating
- Connectivity
- Bluetooth LE, Apple HomeKit only
- Price guide
- £88 (at time of writing)
Pros
- Very compact design
- Simple, easy-to-read star rating display
- Seamless Apple HomeKit integration
Cons
- HomeKit only, no other ecosystem support
- Tracks VOCs only, no PM2.5 or radon
- Needs charging roughly every 6 weeks
Best value
Temtop M10i
Expert Reviews found this offers well-rounded tracking including formaldehyde detection, unusual at this price, with iOS and Android apps and Excel export for logging readings over time. Testers noted the app is limited to daily graphs only, and battery life is poor, so it's best kept plugged in via USB.
- Sensors
- VOCs, PM2.5, formaldehyde (HCHO)
- Display
- 3.5in mono LCD
- Power
- Internal battery, ~6hr runtime (USB recommended)
- Price guide
- £100 (at time of writing)
Pros
- Tracks formaldehyde as well as VOCs and PM2.5
- Excel export for logging data
- Good value for the sensor range
Cons
- App limited to daily graphs only
- Poor battery autonomy, best left plugged in
Best entry-level
Airthings Wave Mini
Expert Reviews found this a compact, strong-value entry point, with a built-in mould-prediction algorithm that's a genuinely useful addition most budget monitors lack. It skips PM2.5 tracking to hit its low price, and uses a single LED indicator rather than a detailed screen, running on 3 AAA batteries.
- Sensors
- VOCs, mould-risk, temperature, humidity
- Display
- Single LED indicator
- Power
- 3x AAA batteries
- Price guide
- £66 (at time of writing)
Pros
- Built-in mould-prediction algorithm
- Compact and affordable
- IFTTT automation support
Cons
- No PM2.5 particulate tracking
- Basic LED-only display
Buying guide
Which pollutants actually matter most to track?
Expert Reviews' testing covered VOCs (volatile organic compounds from paint, cleaning products and furnishings), PM2.5 particulates (from cooking, smoke and outdoor pollution), CO2, and in some models radon, a naturally occurring radioactive gas. If you're concerned about a specific issue like damp or mould, the Airthings Wave Mini's dedicated mould-risk detection is more directly useful than broader multi-gas tracking.
Do I need PM2.5 tracking?
PM2.5 tracks fine particulates from cooking, smoking or outdoor pollution drifting indoors, and is included on the Airthings View Plus, Amazon Smart Air Quality Monitor and Temtop M10i here. The Airthings Wave models and Eve Room skip it in favour of a lower price or a specific focus like radon or mould risk, so check this matters to you before choosing a cheaper option.
How did Expert Reviews actually test response speed?
Beyond passive week-long tracking, testers deliberately introduced drying paint, smoke, deodorant sprays and humidifier moisture in a smaller room to see how quickly each monitor reacted and issued a warning, rather than just judging monitors on their spec sheets.
Do I need Wi-Fi, or is Bluetooth enough?
A Wi-Fi-connected monitor like the Airthings View Plus or Temtop M10i lets you check readings remotely from anywhere. A Bluetooth-only monitor like the Airthings Wave Plus or Wave Mini is cheaper and still gives detailed readings via app when you're in range, fine if you mainly want an at-a-glance check at home.
Sources
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