25 Most Polluted Cities in the World (2023 Rankings)

Air pollution ranks among the top causes of death in the world. But which cities and countries are the most polluted (dirtiest) in the world? Smart Air analyzed 2022 PM2.5 data for 529 major cities from 88 countries around the world to create the 2023 updated ranking of the “Top …

Read more

Holiday Fireworks Raise Air Pollution for 14 Hours

Holiday Fireworks Raise Air Pollution for 14 Hours, Study Finds

Every year, millions of Americans watch 4th of July fireworks, but those fireworks create air pollution that lingers well into the next day, according to a new study. This new study may prompt some cities to reconsider using old-fashioned fireworks and replacing them with newer technologies like drone shows.  Tracking …

Read more

What Are Good Air Quality and Safe PM2.5 Levels For Your Home?

After more than 16 years, the World Health Organization (WHO) updated its air quality guidelines, including its recommended limits for one of the world’s biggest killers, PM2.5 air pollution. The WHO lowered their annual PM2.5 limit by half, from 10 micrograms to 5 micrograms. So are these new guidelines safe …

Read more

Delhi smog tower

Delhi Unveils Smog-Fighting, Air Purifier Tower, But Does It Work?

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. The city aims to tackle this crisis by installing a smog tower. Yet, an important question remains: Can Delhi’s air purifier tower effectively combat outdoor air pollution? …

Read more

Jakarta Indonesia Air Pollution

Jakarta Air Quality Index (AQI) and Indonesia Air Pollution

Air Quality and Pollution in Jakarta, Indonesia Jakarta, Indonesia has high air pollution levels and is one of the smoggiest cities in the world. In 2020, air quality exceeded the WHO annual pollution limits on every single day except one. What’s more, Jakarta’s most polluted day in 2020 had PM2.5 …

Read more

How Wildfires In California Affect Air Quality

It is no surprise that wildfires affect air quality. The wildfires in California and Australia have had a substantial impact on air quality levels over time. Pictures like the one above show the large amounts of smoke and pollution produced by these forest fires in California. But how exactly does …

Read more

The Dangers of High Carbon Dioxide (CO2) Levels

Although carbon dioxide (CO2) is a byproduct of many natural processes, high levels of CO2 can cause a variety of health effects on humans. This article explains at what levels CO2 becomes dangerous and the negative health effects of these high CO2 levels. Also, how do CO2 levels become high …

Read more

Can Air Purifiers Remove CO2?

Excessive carbon dioxide (CO2), a by-product of natural gas exchange, can have harmful health effects, giving us headaches and making us feel like we’re not at our sharpest. When considering which methods are the best to reduce CO2 levels, a simple question arises: can air purifiers remove CO2? Read more: The …

Read more

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.

Certified B-Corp air purifier company