Comment by mbrubeck

> Second, I don't believe this air purifier, or really any recommended air purifier is going to use 45 watts for any extended period of time.

The article says it is comparing to the Wirecutter's current "small space" pick, which since April 2022 has been the Levoit Core 300:

https://www.nytimes.com/wirecutter/reviews/best-air-purifier...

The Wirecutter measures it at “34.6 watts on medium (and 31.8 watts on low).” The manufacturer's specs give a “Rated Power” of 45W, which might correspond to the “high” setting:

https://levoit.com/products/core300-true-hepa-air-purifier

45W for high is reasonable, but the other modes are weirdly inefficient. Even the low power mode uses several times more energy than medium on the filter I have in my living room. Maybe it's using the extra power to mine bitcoin.