Does a HEPA Filter Remove Ozone?

Although HEPA filters are excellent at capturing nanoparticles, they don’t remove gases like ozone. To get rid of ozone, you need an activated carbon filter, also known as a “charcoal” filter. How Effective are Carbon Filters at Removing Ozone? One study was carried out in an office building in Sacramento, …

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What Do Air Purifiers Do and How Do They Work?

Recently I discovered thousands of people ask Google “What do air purifiers do?” and “How do air purifiers work?” each month. Ten years ago, Smart Air’s founder and University of Chicago Professor Thomas Talhelm had these questions too. In fact, these questions ultimately led Thomas to create Smart Air and …

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What is a HEPA filter and how does a HEPA filter work?

What Are HEPA Filters and How Do They Work?

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 …

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How to Remove Cigarette Smoke Smell and Pollutants

Cigarette smoke smell and the dangerous pollutants in secondhand smoke can be extremely unpleasant. The health danger is serious, with a study showing one cigarette produces 10-times the amount of dangerous particulates than a diesel car. So how can we remove cigarette smoke smell and the cancer-causing pollutants in it? …

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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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EN1822 HEPA Filter Standard: Everything You Need to Know

Wondering what the EN1822 HEPA filter standard is, and when to use it? This article covers the scope and history of the EN1822 standard, the different EN1822 filter classifications, and the test methods used. Jump to the relevant section: EN1822 HEPA Filter Standard: Overview EN1822 and its latest version, the …

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CDC study shows schools that used HEPA filters in the classroom had significantly lower covid-19 infection rates

CDC Study: HEPA Filters Reduce COVID-19 Spread in Schools

There has been little dispute that HEPA filters are extremely effective at removing virus and COVID-19 sized particles from the air. However, what has been less known is whether or not HEPA filters can actually reduce the transmission of COVID-19 in the real world. Now, thanks to a new CDC …

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Size of coronavirus particle pm2.5 and bacteria

Can HEPA Filters and Air Purifiers Remove COVID-19?

Data shows face masks can protect you from COVID-19, but how about air purifiers? Can an air purifier with HEPA filters remove COVID-19 and other viruses? Can HEPA Filters Remove Viruses Such as COVID-19? To answer this question, we need to first answer if HEPA filters can capture particles as …

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Smart Air low cost purifiers

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

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