Should air purifiers have the HEPA filter on the front or the back–is it better to push or pull air? The Smart Air lab in Beijing ran tests of the same fan with the HEPA filter on either side, and the results contradict most people’s intuition. When I made my ... Read more The post HEPA Filter Fan Placement: Should Air Purifiers Have the HEPA Filter on the Front or Back? appeared first on Smart Air ..read more

In this Dyson headphones review, we won’t look too deeply into whether or not they’re good as headphones or how well the audio and sound quality are in them. Instead, our focus will be on how effectively they clean the air and whether this surpasses the performance of an N95 ... Read more The post Dyson Zone Headphones Review: Is this Wearable Air Purifier Better Than an N95 Mask? appeared first on Smart Air ..read more

Car air purifiers sound like a great idea. But do we need them? Do car air purifiers even work?  Soon after I started making DIYs, people emailed me asking if we could make an air purifier for their car. My initial reaction was, “Great idea!” On the highways, we’re surrounded ... Read more The post Are Car Air Purifiers Necessary and Effective for Clean, Fresh Air? appeared first on Smart Air ..read more

Levoit Core 300S, with over 94,000 reviews on Amazon, ranks as the No.1 best-seller in HEPA filter air purifiers. Yet, it’s not just the numbers that caught our attention – a little dispute with Dyson intrigued us to look deeper into this purifier model. Here is our review of the ... Read more The post Levoit Core 300S Air Purifier Review, the Best Budget Air Purifier? appeared first on Smart Air ..read more

After a challenge from Dyson through the BBB National Programs National Advertising Division (NAD), Levoit removed the “True HEPA filter” labels on three air purifier models. As one of the best selling air purifiers on Amazon, this change will impact thousands of air breathers who have already purchased the air ... Read more The post Dispute Finds Levoit Falsely Claimed Filters As ‘True HEPA’ Grade appeared first on Smart Air ..read more

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 ... Read more The post What Are Ionizer Air Purifiers and Do They Work? appeared first on Smart Air ..read more

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 ... Read more The post Why a Weaker Filter Actually Makes a Stronger Purifier (HEPA H12 vs. H13) appeared first on Smart Air ..read more

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 ... Read more The post Thin Carbon Filter Layers Lose Effectiveness in Just Minutes, Study Finds appeared first on Smart Air ..read more

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 ... Read more The post Can Air Purifiers Remove CO2? appeared first on Smart Air ..read more

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 ... Read more The post Thin Carbon Filter Layers Lose Effectiveness in Just Minutes, Study Finds appeared first on Smart Air ..read more