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Airthings · Airthings 322 Wave Enhance -Indoor Air Quality Monitor for CO2, VOC, Humidity, Temp, Pressure plus Noise & Light Sensors - Monitors Conditions for Sleep in Bedrooms & for Concentration in Home Offices
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Verdict
The Wave Enhance is designed for the bedroom and home office rather than the lab bench. It measures CO₂ with an NDIR sensor, adds VOCs, humidity, temperature, pressure and a sound-level sensor, runs on two AA batteries and reports over Bluetooth. There is no screen; a touch on the case shows a colour indicator. If you want to understand why a room feels stuffy at night and you are happy to look at the app in the morning, it does that well. If you want a number you can read from the pillow, the Aranet4 HOME is the better fit.
Documented Specifications
| Item | Documentation |
|---|---|
| CO₂ | NDIR sensor |
| VOCs | Total VOC sensor (relative index) |
| Comfort | Temperature, relative humidity, atmospheric pressure |
| Noise | Sound-level sensor (no audio recording) |
| Indicator | Touch-activated colour indicator |
| Connectivity | Bluetooth to the Airthings app; hub or View device for cloud |
| Power | 2 × AA (included) |
| Warranty | Standard, extendable to five years on registration |
Why the Bedroom Focus Makes Sense
A closed bedroom with two people can pass 2,000 ppm CO₂ by morning. That level is associated with disturbed sleep and morning grogginess, and it is invisible without a monitor. The Wave Enhance logs the overnight curve along with humidity and noise so the app can show which one lines up with a bad night. Our article on using a CO₂ monitor in a bedroom explains the pattern to look for and what to do about it.
Living Without a Screen
The screenless design keeps the unit quiet and dark at night and stretches the battery, but it means you cannot glance at the CO₂ number. The touch indicator gives a colour, which is enough to decide whether to open a window. Some owners find that sufficient; others miss the number. That is the main decision to make before buying.
App and History
The Airthings app connects over Bluetooth, shows each measurement over time and lets you set notification thresholds that fire when the phone syncs. Without a hub the data is not live while you are away. If you already own an Airthings View Plus on USB power, it acts as a hub and brings the Wave Enhance onto the web dashboard.
Strengths
- NDIR CO₂ on battery power at a lower price than the Aranet4.
- Five additional measurements for context.
- No light or noise at night.
- Free app, optional five-year warranty on registration.
Limitations
- No numeric display.
- Bluetooth only unless combined with a hub.
- VOC index is relative.
How It Compares
Against the Wave Plus it swaps radon for a noise sensor. Against the Aranet4 HOME it trades the display for more sensors and a lower price. Against the Temtop C1+ it offers more sensors but loses the screen. See choosing a CO₂ monitor for home use for how these choices play out.
How We Research
This review is based on Airthings’ published specifications and support documentation, the Amazon listing and owner reports. We did not run laboratory tests.
Recommended Tools
Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.
Frequently Asked Questions
Does the Wave Enhance have a screen?
No. Touch the unit and a colour indicator shows the overall status. The numbers are in the Airthings app.
Does it connect to Wi-Fi?
Not on its own. It uses Bluetooth. If you own an Airthings hub or a View-series monitor on USB power, it can be brought online through that.
Is the CO₂ sensor NDIR?
Airthings specifies an NDIR CO₂ sensor for the Wave Enhance.
What is the noise sensor for?
It logs sound level so the app can relate poor sleep to noise as well as to CO₂ and humidity. It does not record audio.
Affiliate disclosure: Akermin earns a commission from qualifying Amazon purchases made through links on this page. Our editorial picks are based on documented specifications and owner feedback, not commissions.




