Measured, not marketed
Hands-on reviews of air quality monitors, air purifiers & masks.
Researched, independent, and honest information on air pollution and the products meant to protect us against it. Every device is tested first-hand.
No sponsored verdicts or articles. Just a lot of testing and a genuine interest in helping you make sense of your air.
Start here
New to a topic? These guides cover what matters before you buy, and where to go next.
01CO₂ monitors
What a good CO₂ reading looks like, NDIR versus cheaper sensors, and which monitors to trust.
Read the guide →
02Air quality monitors
PM2.5, VOCs and the rest: how the sensors work, and what they can and cannot tell you.
Read the guide →
03Radon monitors
Why radon matters, short versus long-term testing, and the detectors worth owning.
Read the guide →Latest from the test bench
Levoit Core 300 Review – Better Than the Xiaomi 4 Compact?
For the past five months, the Xiaomi Smart Air Purifier 4 Compact has been running in my office. It’s a smaller room, and the 4 Compact has proven to be a perfect…
Read the review →-
Air Purifier Reviews2026.08.07Levoit Vital 200S-P Review: Tested, Measured and Lived With
When I was working out which air purifiers to buy for our house earlier this year, a few brand names kept coming up, and Levoit was…
-
Air Quality Monitor Reviews2026.07.08IKEA Alpstuga Review: IKEA’s Most Capable Monitor Yet?
Welcome to the long-awaited IKEA Alpstuga review. And I do mean long-awaited, so before anything else, an apology for how long this article’s taken. Just finding…
-
Air Quality Monitor Reviews2026.06.26Sensereo MSC-1 Review – Is Combined Smoke and CO Detection Worth the Upgrade?
Not too long ago, I reviewed the Sensereo MS-1, the first Matter-over-Thread smoke alarm on the market and a device I’d been quietly waiting for someone…
-
Air Purifier Reviews2026.06.17Provirtec Pawtent Pro (AP-12 Pro) Review – Is a ‘For Pets’ Purifier Worth It?
Update: I’ve revised this review since it first went live. After re-running my clearance tests several times, I recorded noticeably better and more consistent figures than…
What I'm currently testing
IKEA Alpstuga
Perhaps my most requested review. Could this $30 indoor air quality monitor prove to be a disrupter and lower the cost of entry into AQ monitoring?
Odak Clean Air Assistant
Perhaps the most beautiful air quality monitor I've tested, the Odak is a comprehensive indoor/portable air quality monitor that will always draw attention.
Provirtec Pawtent Pet Air Purifier
In a house full of cats, an air purifier designed specifically for pets is an interesting idea. However, it still needs to be performant enough for typical purification uses.
Sensereo MSC-1
Smoke and CO alarms have been stuck in the past for quite a while. No longer! This Matter over Thread alarm looks to be promising for anyone with a smart home.
Browse by category
Index AAir Quality Monitors
CO₂ monitors, particle monitors, radon detectors and portable meters - indoor and out!
Browse →
Index BAir Purifiers
Hands-on purifier reviews with measured PM2.5 decay curves, so you can see what each unit actually clears.
Browse →
Index CMasks & Respirators
Disposable and reusable masks and respirators, tested for fit and real-world protection against air pollution.
Browse →How I test
Every verdict here is built on hands-on testing, measured where I can (sealed-room CADR, sound, temperature and humidity against a calibrated hygrometer) and backed by third-party labs and research where I can't. Scores follow fixed, published tiers, not arbitrary rankings. See the full method on my methodology page.
Read the full methodology →Dispatch
The findings that don't make it into the reviews.
BreatheSafeAir is a one-person publication. There's no team and no marketing budget behind it, so every subscriber genuinely matters.
Subscribing is the best free way to support the work. You'll get what I'm currently testing, the findings that never make the full write-ups, and the kind of detail you only get from someone who actually puts these devices through their paces.
Subscribe for free →
