Airthings Wave Mini Indoor Air Quality Monitor review
A damp-prone bathroom, utility room or bedroom where humidity and airborne chemicals are the actual question.
By Tom Calder · Updated 24 July 2026 · Price checked against our tracker
This is a VOC-and-damp device rather than an air quality monitor in the general sense: no radon, no CO2, no particulates and emphatically no carbon monoxide. Its Mould Risk Indicator is a 0–10 score calculated from temperature and humidity, not a measurement of mould or spores. At around £75 it is the cheapest way into the Airthings app, but you are paying close to Aranet4 money for considerably less sensing.
£75.00, in stock at UK retailer filtermate.co.uk on 24 July 2026. UK pricing for this model is unusually scattered — another UK specialist listed it at £94.80 the same day, and Amazon.co.uk was reported at £65.00 — so £75 is a confirmed mid-point rather than a fixed price. Worth comparing two or three sellers.
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- Cheapest route into the Airthings app, with proper history graphs
- 3x AA lasts a claimed two years-plus, or three years-plus via SmartLink
- Mould Risk Indicator condenses temperature and humidity into one number you can act on
- Measures the least of anything here — no radon, no CO2, no PM2.5 and no carbon monoxide
- The Mould Risk Indicator is calculated from temperature and humidity, not a mould or spore measurement
- No screen, and SmartLink access requires a View-series monitor acting as a hub
Key specs
| Measures | VOCs, temp, humidity, calculated mould risk. No radon, CO2, PM2.5, CO. |
| Display | No screen — wave your hand for a red/yellow/green glow |
| Connectivity | Bluetooth to app; SmartLink needs a View-series hub (extra) |
| Power | 3x AA — over 2 years claimed, over 3 years via SmartLink |
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