How to Make a DIY N95 Mask

N95 masks are often referred to as the “gold standard” for face masks and are relied on by healthcare workers for protection. This unfortunately results in occasional shortages and higher prices for N95 masks. That raises the question: Can you make a DIY N95 mask? As a pioneer in the …

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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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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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Visualize: Delhi’s Air Pollution (2016-2021)

Delhi is one of the most polluted cities in the world. PM2.5 pollution levels reach more than 10 times the World Health Organization’s annual limit. Hazy skies and pollution alerts have become the norm in Delhi. In winters, the air quality reaches hazardous levels creating health emergencies.  To help people visualize how Delhi’s …

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How Air Pollution Affects Your Mood

Air pollution affects nearly every organ in our body, but did you know air pollution affects your mood too? Research shows direct correlations between air pollution and a bad mood. PM2.5 Air Pollution Worsens Mood Researchers at MIT studied how air pollution affects mood across 144 cities in China. Using …

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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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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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How far can wildfire smoke travel?

How Far Can Wildfire Smoke Travel?

Wildfire smoke can travel a long way. And this wildfire smoke is a serious health concern. But how far can wildfire smoke travel exactly? Can someone in New York be affected by the California wildfires thousands of miles away? Do Australian bushfires affect the entire country? During the ravaging California …

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Smart Air low cost purifiers

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.

Certified B-Corp air purifier company