Can Air Purifiers Remove Asbestos From the Air?

Asbestos are extremely dangerous and cause cancer. Can air purifiers remove asbestos from the air and make your home safer? To know how effective air purifiers are at removing asbestos from the air, we first need to know whether asbestos is solid or gas. HEPA purifiers capture particles, not gases. …

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Are True HEPA Filter Air Purifiers Better?

Many air purifier companies market their air purifiers as “True HEPA” air purifiers. For example, Philips touts the True HEPA filters in their air purifiers and its filtration efficiency. Even some so-called “experts” claim you need a True HEPA filter in your air purifier. So what exactly are True HEPA …

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How Blueair Purifiers Can Create Dangerous Ozone

Blueair states their air purifiers use HEPASilent technology. They avoid any link to ionizers by claiming that it involves an ‘ion chamber’ that doesn’t emit ions to the room or produce ozone. However, we took apart a Blueair 203 purifier to take a look at this ‘ion chamber’. It turns …

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Most Underrated Natural Way to Lower Blood Pressure

If you search for a solution to lower blood pressure naturally without medication, you will often find the results shown below. The problem is most of the top results are missing one of the most powerful, simple ways to lower blood pressure naturally. This natural method of lowering blood pressure …

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Calculating CADR with airflow and filtration %

How to Calculate CADR From an Air Purifier’s Airflow

CADR tests, used to calculate an air purifier’s effectiveness at cleaning air, are typically used to compare the performance of different purifiers. However, performing a CADR test is not simple: it requires a particle monitor, a sealed 30m3 test lab, and tightly controlled testing conditions. Because of the complexity of …

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What’s CADR and What’s the Difference With Airflow?

When buying an air purifiers, the terms ‘airflow’ and CADR are often used interchangeably to describe an air purifier’s performance. But what’s the difference between CADR (clean air delivery rate) and airflow? Are they the same thing? Or which one – CADR vs. airflow – should be used when buying …

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corsi rosenthal box

Corsi-Rosenthal Box DIY Purifier: 4 Things to Know

A fan, furnace filters, and some duct tape–can air purifiers be that simple? Meet the Corsi-Rosenthal Box (CR Box) DIY air purifier. The Corsi-Rosenthal Box is a powerful, low-cost air purifier that you can put together on the cheap. At Smart Air, we’ve been building, testing, and teaching people how …

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What Does the Number On My Air Purifier Mean?

What is the meaning of that number displayed on your air purifier? Many popular air purifiers including Xiaomi and Philips display live air quality readings. But what exactly do these numbers mean and are they even accurate? In this article, we break down everything you need to know about that …

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What Are Ionizer Air Purifiers and Do They Work?

What are ionizer air purifiers and do they work? 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 …

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Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.