Air purifiers are devices that remove pollutants from the air and improve air quality. Air purifiers do this either mechanically, using air filters, or using ionizers or chemical reactions. Read more to learn about air purifiers, how to choose the best air purifier, and how they can protect against viruses, wildfire smoke, air pollution and PM2.5.
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 …
Adam in Suzhou sent me a picture of a creative solution to a filter problem. The fan he had at his house had an opening that was slightly larger than the HEPA. So Adam cut out a piece of cardboard to close up the edges. Great idea! Adam …
Dr. Saint Cyr recently pointed me to great tests of air purifiers from the Shanghai Consumer Protection Bureau: The reason this type of research is so badly needed is that Western research (like this report from Consumer Reports) focuses on allergens, not general industrial air pollution. Allergens are probably more …
Independent Confirmation. I’ve always suspected that what I’ve “discovered” is so basic that people must’ve known about this before. Lo and behold, doctors at the University of Michigan recommend that people who suffer from allergies make a purifier for $25 with a furnace filter and a box fan. Getting independent …
How do I know if a DIY purifier works? I think you can break this down into two questions： Is the air coming out of the DIY purifier clean? The test results are as clear as can be. The DIY purifier shoots out very clean air. But is that enough to actually …
DIY Filter TestWatch this video on YouTubeSubscribe to Smart Air on YouTube I made a video to show if the air coming out of the HEPA filter of my DIY is clean. See the filter in action. This settles that the air is coming out clean. But is that enough …
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