Tech companies love to talk about how automation, internet of things, and the connected house are going to make the machines we use every day more convenient. But does it work? Anyone who’s used Apple’s Siri or “talk to text” feature knows that the promises of technology sometimes fall short. Here’s the Xiaomi air purifier, […]
A few months ago, Smart Air tested the Laser Egg, the Node, and the Dylos against official PM2.5 readings. The results were way better than I expected! All three machines correlated r = .90 or higher, meaning they were very closely related. But this test may have exaggerated their accuracy. See, the Egg and the Node […]
Everyone who buys an air quality monitor wants to know how it compares to the official numbers to confirm its accuracy. 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 my apartment (at Nanluoguxiang) 70 times […]
Science in the news! The word on clean air seems to be getting out. Particle Counting was written up in a few places recently: James Fallows graciously wrote about Particle Counting as one low-cost safeguard while living in “toxic” China, partly in response to New York Times Beijing correspondent Edward Wong’s personal account of worries […]
The Dylos DC1100 Pro Air Quality Monitor is what I use to test whether the filters work. It gives readings of the number of particles 2.5 micrometers and above, as well as .5 micrometers and above per .01 cubic foot. They’re available through Amazon for $261.