Smart Air’s data-backed reviews of air purifiers, air quality monitors and masks provide honest, open-data reviews of popular brands like Xiaomi and Dyson. We present real-world test data on air purifiers from multiple brands, including Smart Air’s own, and compare them against each other. Learn what you should look out for when you’re buying an air purifier, how to test the effectiveness of your existing air purifier and tips here.
When a billion people in China (and quite a few expats) woke up to the severe air pollution in almost every city in China, it forced a billion people to become experts in a complicated scientific question: Do masks work? Since then, I’ve given talks with hundreds of people all around …
Review Xiaomi Mi 2 air purifier – a good cheap and effective air purifier? Ever since I coughed through a Beijing airpocalypse, I’ve been saying clean air doesn’t need to cost an arm and a leg. I even set up Smart Air to provide low-cost purifiers to people around the …
With the outbreak of the coronavirus, many people are wondering if masks capture coronavirus particles. It’s a big change for all of us to suddenly start wearing masks everywhere. And it’s a lot to ask billions of people around the world to become mask experts overnight. There is a lot …
Have you ever wondered about the number on your air purifier? Brands like Levoit, Xiaomi, and Philips show live air quality readings. But what do these numbers really tell us, and can we trust them? In this article, we’ll explain what that number means on your air purifier. But a …
How does a $550 Dyson TP04 air purifier compare to the Sqair, which costs less than a third of its price? We put both air purifiers to the test to compare their effectiveness in reducing PM2.5 in the Smart Air India office in Delhi. The Head-to-Head Test To compare the …
A few months ago, Smart Air tested several air quality monitors, Laser Egg, the Node, and the Dylos, against official PM2.5 readings. The results were way better than I expected! All three machines correlated r = .90 or higher with the gold-standard numbers, which is very high. But this test …
The QT3 is a small, portable air purifier designed to provide a stream of clean air on the go. Even though the QT3 is not designed for cleaning entire rooms, our tests show it is effective at cleaning small rooms up to 15 m2. That raises the question, is the …
While Dyson’s Pure Cool air purifier looks impressive, a closer examination of its Clean Air Delivery Rate (CADR) exposes a rather bad performance. The Dyson TP05 Pure Cool passed a mere 164m³/hr in CADR. That means the Dyson Pure Cool air purifier out as much clean air as a $20 …
Can air purifiers be made from just a fan, furnace filters, and duct tape? Introducing the Corsi-Rosenthal Box (CR Box) DIY air purifier. This is an effective, budget-friendly air purifier that you can put together with low cost. At Smart Air, we’ve been creating, testing, and instructing people on DIY …
Many air purifier companies add fancy features to help market their products. One of these features is an air purifier auto mode, also called “smart mode”. The problem? Test data shows an air purifier’s auto mode routinely fails, leaving users with dangerous air. The idea behind smart purifiers’ auto mode …
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