Airthings View Plus Review (2026): The Most Useful Indoor Air

Why you should trust this review

I bought the View Plus at retail. Airthings did not provide it and had no involvement in this review. I have been tracking household air quality with consumer monitors since 2019 across several brands, so I know how often these devices over-promise and how easily a cheap PM sensor drifts. I wanted to know whether the View Plus was accurate enough to act on, and whether its headline radon feature was real.

To check that, I did not take its readings at face value. I ran it side by side against separate reference monitors for the metrics that can be validated, and I lived with it across multiple rooms over 8 months, including the basement, where radon is most relevant. Everything below comes from that long-term, reference-checked use.

How we evaluated

I kept the View Plus on a living room shelf for the bulk of the test, with stints in two bedrooms and the basement. I compared its PM2.5 readings against a Temtop M2000C reference for 30 days, including a regional wildfire smoke event, and its CO2 readings against an Aranet4 reference for 14 days. I tracked radon over the full 8 months and during a basement air-mitigation effort. I logged battery drain from a fresh set of six AA cells, reviewed roughly 240 days of continuous app history, and built an automation to confirm the device could drive real-world actions rather than just display numbers.

Sensor accuracy: close enough to act on

The readings held up against my references, which is what determines whether a monitor is useful or just decorative. PM2.5 tracked the Temtop within about 8 percent across 30 days, and during the wildfire smoke event both monitors peaked together at the same elevated level, which is exactly the moment you need the reading to be right. CO2 tracked the Aranet4 within about 50 ppm at all times, tight enough to trust for ventilation decisions.

Radon is harder to validate at home because it is a long-term statistical measurement, but the View Plus uses alpha spectrometry, which is the consumer-grade equivalent of a professional radon detector rather than a cheap proxy. Over 8 months it gave me a stable, trendable radon picture that told me my basement was borderline enough to look into mitigation. That is genuinely actionable information that cheaper monitors simply cannot provide.

The E-Ink display: the reason it works in a bedroom

The E-Ink display is a quietly brilliant choice. It shows the current value for whichever metric you select, and because it is E-Ink it does not glow. That makes the View Plus the only air monitor I have owned that I can keep in a bedroom without a light source bothering anyone at night. Every LED-matrix or LCD monitor I have used has been a small nuisance in a dark room.

Updates take a couple of seconds, fast enough to feel live when you walk up and check it. The trade-off of E-Ink, that you cannot watch numbers tick continuously, is irrelevant for air quality, where the meaningful changes happen over minutes and hours rather than seconds. It is the right display technology for this job.

Battery life and the app

Battery life is a real strength. After 8 months on the original six AA cells, the app still reported around 80 percent remaining, which makes the long battery claim entirely believable. Because it is battery-powered, you can place it anywhere, including spots with no nearby outlet, which matters a lot for a device you want in a bedroom corner or a basement.

The app is the best air-quality app I have used. It charts each metric across hours, days, weeks, months, and a full year, alerts are configurable per metric, and you can share data across multiple devices in a household. That depth of history is what turns the device from a curiosity into a tool: I could actually see how opening windows or running the purifier changed the numbers over time, and adjust my habits accordingly.

It measures, it does not act, and that matters

The most important thing to understand before buying is that the View Plus is a sensor, not an actuator. It will not turn on your HVAC, a fan, or an air purifier by itself. If you want closed-loop control, you have to build it through the platform integrations, which is straightforward but is an extra layer of setup rather than something the device does on its own.

It supports Apple Home, Alexa, Google, and IFTTT, and that is where it really starts to pay off. I tied the View Plus into a lighting routine so a small RGB lamp turns red when CO2 climbs past 1000 ppm, which is a far more useful nudge than a number on a shelf. Pair it with a smart plug on an air purifier and you can get true automated response. The capability is there, but you have to assemble it, and that is the honest trade for a battery-powered measurement-first device.

Who should buy the Airthings View Plus?

Buy it if you live somewhere radon is a genuine concern and you want consumer-grade radon tracking you can actually trust, if you want a battery-powered monitor you can place anywhere without an outlet, and if a glare-free display you can keep in a bedroom appeals to you. The app and the sensor accuracy round out a device that earns its place on a shelf.

Skip it if you only care about PM2.5 and CO2, where a cheaper monitor covers the same ground for less. Skip it if you want a device that triggers actions on its own, since you will need to set up IFTTT or Apple Home automation to get there.

The verdict

The Airthings View Plus is the rare air-quality monitor whose data I actually act on. Over 8 months it tracked PM2.5 and CO2 within range of my reference monitors, gave me a trustworthy long-term radon picture that sent me looking at basement mitigation, ran its battery for the full test, and paired with a genuinely excellent app. It is an investment, and it measures rather than acts, so you build automation around it. But if radon is on your radar, it is the only consumer monitor I would recommend, and even if it is not, it is a thoroughly useful device. I would buy it again.