How to protect yourself from wildfire smoke

Best Air Purifier to Protect Yourself From Wildfire Smoke

Wildfires create a serious amount of smoke and air pollution. Wildfire smoke that can cause short and long term health impacts. That’s why it’s important to know how to protect yourself from wildfire smoke. Wildfire smoke is a form of air pollution. It contains dangerous VOC gases and small particles … Read more

Can Activated Carbon Remove Formaldehyde?

Can activated carbon filters remove formaldehyde and VOCs? Earlier tests from Smart Air found that carbon can reduce VOCs from cigarette smoke. But formaldehyde and VOCs in general are particular concern for many people. We put activated carbon filters to the test by ordering formaldehyde straight from the factory and … Read more

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 … Read more

$1,000 IQ Air vs $70 DIY Air Purifier: Which is Better?

New head-to-head test data from a citizen scientist finds that a simple, taped-together DIY air purifier effectiveness is higher than a market-leading Swiss air purifier, IQ Air. This data adds to an accumulation of data suggesting that effective air purifiers need not be expensive. The Setup The underlying science of … Read more

Why Air Purifier Pre-Filters May Be More Harm than Good

Most purifiers on the market come with a pre-filter. That would make one think that pre-filters must be a good thing, right?   However, most purifier companies also love to selling people 6-stage filtration, or no – 7-stage filtration! But the science behind purifiers is surprisingly simple. Two types of … Read more

Why are air purifiers so expensive

Why are Air Purifiers so Expensive?

I thought about why air purifiers cost a lot because I was living in Beijing when the (first) “airpocalypse” struck. Here’s what it looked like: The High Price of Air Purifiers I went out to buy an air purifier, and found that the one I wanted cost $2,000! I worked … Read more

HEPA Lifespan Test Filter Air Purifier

HEPA Longevity Test: Day 200

One of the biggest questions when I started doing the DIY was HEPA lifespan–how long do the HEPAs last? Rather than just give people a nice-sounding answer, I wanted to see what the data says, so Gus has been dutifully turning on his Original DIY every day in his 12.3m2 Beijing … Read more

Are HEPA Filters Harmful to Health

Are Fibers From HEPA Filters Harmful to Health?

HEPA filters have caused controversy over concerns that they might shed tiny fibers and be harmful to health. But the latest scientific studies have shown HEPA filters are safe and found no evidence of harm. Possible shedding fibers have made some people afraid of HEPA filters and question “are HEPA … Read more

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.