Comment by buildbot

Errr direct quote from the article: "These tests… are not credible.

Take the 3.0-micron tests on medium, where Wirecutter claims “virtually all” particles were removed. If we take that to mean 99%, that implies a CADR of 236.2. (The math is below.) That is 75% higher than the manufacturer’s claimed performance on high.

It also contradicts the Wirecutter’s own tests. On a different page, they tested the same purifier on medium in a (smaller) 1215 ft³ room and found only 92% of particles were removed. This implies a (plausible) CADR of just 98.1.

So we can either (a) accept that the purifier’s performance randomly varies by a factor of more than 2.4 or (b) conclude that the Wirecutter did an extremely shoddy job of running these tests."

Why did you make three separate top level comments on this?