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What 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 HEP
by opencl 9y ago
What 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.