3 ms·
Wirecutter performed a similar experiment a few years back. Their results were somewhat different, showing that the DIY version helped significantly, but not n
by ddlatham 5y ago
Wirecutter performed a similar experiment a few years back. Their results were somewhat different, showing that the DIY version helped significantly, but not nearly as well as the best of the commerical ones they tested:
https://www.nytimes.com/wirecutter/reviews/best-air-purifier/#what-if-you-just-put-a-furnace-filter-on-a-box-fan https://www.nytimes.com/wirecutter/reviews/best-air-purifier...
I wonder what accounts for the difference in results.
- ncmncm 5y agoWirecutter pretty consistently produces spurious results, and bad recommendations. Ben Kuhn and Dan Luu have written about this, Cf.
- jly 5y agoThe wirecutter DIY test used a filter with a rating of FPR 9. Since FPR isn't standardized like MERV or HEPA, it's hard to tell what this means, but likely to be < MERV 13. The OP used a HEPA filter on their testing which is > MERV 16.