Air purifiers are devices that remove pollutants from the air and improve air quality. Air purifiers do this either mechanically, using air filters, or using ionizers or chemical reactions. Read more to learn about air purifiers, how to choose the best air purifier, and how they can protect against viruses, wildfire smoke, air pollution and PM2.5.
The term “HEPA filter” can be confusing. What does HEPA stand for? What is a HEPA filter made from, and what actually makes it a HEPA filter? What is a HEPA Filter? “HEPA” stands for “high-efficiency particulate air” (filter). It sounds complicated, but HEPA air filters are nothing fancy. They …
What are ionizer air purifiers and ionizer in general? This is an important question because ionizer air purifiers are all over the place. For example, I was at a friend’s apartment in the US, and I saw his tower fan air purifier had an ionizer button on it: Ionizer air …
Why does Smart Air’s latest air purifier, The Sqair, use a weaker filter–an H12 HEPA compared to the H13 HEPA filters out there? Tests of different filter grades revealed that weaker filters sometimes make stronger purifiers. Of course, purifier companies like to market their filters as top grade. Lots of …
The QT3 is the latest addition to the Smart Air HEPA air purifier family, known for its small, compact, and lightweight design. This makes it an excellent choice as both a portable and desktop air purifier, ensuring clean air right at your desk or wherever you go. But it’s not …
For many years, Xiaomi air purifiers have been one of the better-value air purifiers in many markets around the world. Unfortunately, Smart Air’s 2023 review of the new Xiaomi Smart Air Purifier 4 found the Mi 4 comes with potentially dangerous technology. Xiaomi Mi 4 Air Purifier: What’s New? The …
Excessive carbon dioxide (CO2), a by-product of natural gas exchange, can have harmful health effects, giving us headaches and making us feel like we’re not at our sharpest. When considering which methods are the best to reduce CO2 levels, a simple question arises: can air purifiers remove CO2? Read more: The …
Many companies sell air filters with a thin carbon layer. The motive is clear: advertise the ability of carbon to remove gas pollutants. But are these thin carbon layers truly effective? A new academic study finds these filters lose effectiveness after just minutes of use. What Are 3-in-1 Filters? Air …
Will my air purifier still work with a window open? Recent test data from Smart Air, air purifiers can still significantly reduce PM2.5 in a room even when a window is slightly cracked. Here’s what you should know: The Obvious: Air Purifiers Most Effective With Windows Closed No one doubts …
Air purifiers with UV light are marketed as effective virus killers, capable of targeting viruses such as COVID-19. UV light technology including far-uv, far-uvc, and UVGI are advertised to kill 99.9% of viruses. One in every four air purifiers displayed as top results on Amazon is labelled as a UV-C …
