Comment by flanbiscuit

Here's the original Wirecutter review: https://www.nytimes.com/wirecutter/blog/ikea-fornuftig-air-p...

"Our pick among small-space purifiers, the Levoit Core 300, is not much more expensive, is a true-HEPA machine, and has a CADR of 135, which means it’s effective in rooms up to 200 square feet."

Non-affiliate direct link to the one Wirecutter recommends:

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

Just linking for information in case anyone else was curious.