The other day, someone on Quora asked whether ionizer fans actually purify the air. This is an important question because ionizer purifiers are all over the place. For example, I was at a friend’s apartment in the US, and I saw his tower fan had an ionizer button on it: It’s also important because several […]
Tag: air purifier
Q&A
laundrylist 提问: What is the energy usage associated with running a cheap box fan for eight hours at night versus the two expensive models that you compared your cheaper model to? Excellent question! I’ve wondered about that myself. The fan is 50 Watts, compared to 27-215 for an IQ Air (depending on fan speed). So […]
DIY Compared to Expensive Filters
UPDATE: I now have directly comparable data with the DIYs, Blue Air, and Philips: Direct comparison tests. In earlier posts (1, 2), I showed that you can make an effective DIY air purifier to clean Chinese air pollution out of your home air. But just because the DIY filter is effective doesn’t mean it’s as […]
Purifier Tests
I think you can break the question of whether an air purifier works down into two questions. Is the air coming out of the purifier clean? This is the easier question to answer, and the test results are as clear as can be. The DIY purifier shoots out very clean air. But is that enough to actually […]