Smart Air’s data-backed reviews of air purifiers, air quality monitors and masks provide honest, open-data reviews of popular brands like Xiaomi and Dyson. We present real-world test data on air purifiers from multiple brands, including Smart Air’s own, and compare them against each other. Learn what you should look out for when you’re buying an air purifier, how to test the effectiveness of your existing air purifier and tips here.
One group of scientists on the south side of Xi’an are fighting back against Xi’an’s rising PM2.5, and they did so in true China style — by building something big, a huge air purifier tower to be precise. But locals are left to wonder, does it actually work? The air …
Even though PM2.5 levels are falling, years of bad air pollution across China has led to many people installing air purifiers in their homes. Most of us are now breathing cleaner air at home, but what about when we are in public spaces? What’s the air like in that gym …
Tesla rolled out its “bioweapon defense mode” to lots of fanfare and media attention. Tesla went big: “Bioweapon Defense Mode is not a marketing statement, it is real. You can literally survive a military grade bio attack by sitting in your car.” Elon’s telling the truth, but not the whole truth. …
The University of Chicago Center in Delhi contacted Smart Air to design and install a purification system in their 17,000-square-foot office located in central Delhi. The UChicago Center had high levels of PM2.5 in the air, which can lead to problems such as lowered productivity and reduced staff performance. Options …
What is Asbestos? Asbestos is a mineral that makes a great fiber. People use that fiber in lots of building materials, like insulation, paints, electric wiring, wall boards, and floor tiles. It might be all around us. Should I Be Concerned? When any of these materials break apart, …
Asbestos in China is a commonly used building material, and it may be more dangerous than formaldehyde. So why do so few people talk about asbestos in China? Contrast that with other pollutants. One day a few years ago, a Chinese friend of mine asked me about jiaquan (甲醛). “Huh?” I …
This article includes supplemental data for the main article “Xiaomi Mi 2 Auto Mode Leaves Air Unsafe for 86% of hours | Review“ Data and Test Details Settings The app asks what size the room is. How Xiaomi uses that data is a little opaque, but it would be logical …
Lots of people are buying air quality monitors these days, but how do they compare to the official pollution numbers–are they accurate? When I bought a Dylos DC1100 Pro laser particle counter, I did a comparison test with the US Embassy. I put my Dylos Pro outside the window of …
It’s tough to get good mask data on a wide range of consumer masks. I’ve posted some of my own test data and test data from Dr. Saint Cyr. But another great source of even more mask tests comes from the Shanghai Municipal Bureau of Quality and Technical Supervision. I’ve linked to …
When I published tests of the DIY compared to the expensive machines, a couple people on Zhihu (China’s Quora) asked if you really save money in the long run with the DIY once you calculate the cost of changing the HEPA. After all, the IQ Air HEPA costs 1,782 RMB, …
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