Air Quality and Pollution in Singapore Singapore has an air pollution problem and has suffered from poor air quality for years. From 2014-2020, Singapore average daily air quality exceeded the WHO annual pollution limits on an average of nearly 6 out of 7 days of the week. What’s more, Singapore has seen PM2.5 levels over […]
Clean Air Blog • Page 1
Where Does Indonesia and Jakarta’s Air Pollution Come From?
Indonesia’s air pollution levels have severely worsened in recent years. From 2013 to 2016 alone, Indonesia’s air pollution doubled. In 2019, Jakarta averaged over 4 times (40 micrograms) the WHO recommended healthy limit of PM.5 air pollution. With pollution levels worsening to dangerous levels, many may wonder where Indonesia and Jakarta’s air pollution comes from. […]

25 Least Polluted Cities in the World (2020 Rankings)
Air pollution is one of the leading causes of death around the world. Therefore you may be curious: “What are the least polluted cities in the world?” Smart Air analyzed 2020 air pollution data from 540 major cities in the world to create the 2020 ranking of the “25 Least Polluted Cities in the World”. […]

Xiaomi Mi 2 Auto Mode Leaves Air Unsafe for 86% of Hours | Review
The Xiaomi 2 air purifier – a cheap and effective air purifier? Ever since I coughed through a Beijing airpocalypse, I’ve been saying clean air doesn’t need to cost an arm and a leg. I even set up Smart Air to provide low-cost purifiers to people in places like China and India based on that data. […]

Can One Air Purifier Clean an Entire House?
Several people have asked me if they can use one purifier to clean their entire apartment or house. For example, can I put a large purifier in the living room and avoid having to put purifiers in each room? The benefits would be great. This setup would be easier, cheaper, and less noisy, if the […]

25 Most Polluted Cities in the World (2020 Rankings)
Air pollution is one of the leading causes of death around the world. Therefore you may be curious: “What are the most polluted cities in the world?” Smart Air analyzed 2020 air pollution data from 540 major cities in the world to create the 2020 ranking of the “25 Most Polluted Cities in the World”. […]

Surgical Masks Surprisingly Effective Against PM2.5
Surgical masks have a lot of bad rep for filtering PM2.5. There’s a fantastic educational poster from Greenpeace that I’ve seen in several places. Here it is: It offers great advice on masks that protect us from PM2.5, soot or wildfire smoke. But then it says this this about surgical masks: “No effect” it […]
Masks for Coronavirus May Be Lowering Blood Pressure for Millions
The coronavirus has made millions around the world regularly wear masks to reduce the spread of the virus. It is clear, masks help mitigate virus spread. But widespread mask wearing may be having another unintended benefit: lowering blood pressure for millions. With mask wearing to prevent coronavirus spread, people are accidentally protecting themselves from air […]

Jakarta Air Quality (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 levels seven times higher than […]

Should You Sleep Next to Your Air Purifier?
Is it better to sleep next to your air purifier? Does the location of the air purifier in your room matter? To find out, Smart Air did seven overnight tests to see if the air closer to the air purifier is cleaner than other spots in the room. Put to the Test: Should You Sleep […]
