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I wonder, what's your opinion about DIY air filters? Like a box fan plus a furnace filter. Both are not common in Europe, but you could get a different type of
by vymague 9y ago
I wonder, what's your opinion about DIY air filters? Like a box fan plus a furnace filter. Both are not common in Europe, but you could get a different type of fan, and affordable HEPA filters from aliexpress.
- nextos 9y agoGood air filters are complex, not just an HEPA filter, but a series of stages. And an active carbon filter for chemicals.
- vymague 9y agoBut I thought it has been shown putting simple furnace filter on a fan is good enough. https://www.youtube.com/watch?v=kH5APw_SLUU https://www.youtube.com/watch?v=kH5APw_SLUU Are you talking about other filters to filter the larger particles, and carbon filters? Because aliexpress sell them too.
- opencl 9y agoWhat are these complex things they do that are anything but shoving air through a filter with a fan? How do they justify costing hundreds more than taping a HEPA filter+carbon filter to a fan yourself? The product page for the model recommended in that wirecutter article even has a cutaway view, showing that it's just a HEPA filter + carbon filter + fan.
- peferron 9y agoThey look better than DIYs, are typically quieter for the same cfm, and optionally have an automatic mode where the fan speed changes based on the detected air quality. But yeah if you don't care how they look or how noisy they are just assemble one yourself and blast it on max. That's what I did for two years in China and it worked (had a separate particle counter to measure PM).
- opencl 9y agoGlad I'm not missing out on too much with the DIY setup, quiet would be nice though. And the auto mode certainly explains a fair chunk of the price, air quality meters seem to run at least $100.