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 …

Read more

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 …

Read more

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 Phillips 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 …

Read more

Do N95 Masks Really Expire?

Can you wear expired face masks? How effective are expired face masks? A study tested 10 year-old 3M N95 masks compared to new masks and this is what they found.

Do portable air purifiers work?

Wearable Air Purifier Necklaces: Do They Work?

Small, wearable air purifier necklaces have become popular to protect against viruses and other pollutants. They’re small, lightweight, portable, and fairly cheap. Here’s one personal air purifier on Amazon claiming to eliminate germs, dust, viruses, COVID-19, and more from the air. In the Philippines, President Duterte has been seen wearing …

Read more

Manama Bahrain Air Pollution One of Worst in World

25 Most Polluted Cities in the World (2022 Rankings)

Air pollution is one of the leading causes of death around the world. But which cities and countries are the most polluted in the world? Smart Air analyzed 2021 and 2022 air pollution data for 529 major cities from 88 countries around the world to create the 2022 updated ranking …

Read more

What Size Air Purifier Do I Need? [3 Steps]

Air purifiers come in all different sizes, so how can you know what size air purifier you need? In this article, we break down the three steps to know what size air purifier you need and how a metric called CADR can help with this. Step 1: Measure Size (Volume) …

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.