I don't have full access to the article, but it would seem as though the headline has been editorialized. CADR and air quality are not exactly the same thing, t

I don't have full access to the article, but it would seem as though the headline has been editorialized. CADR and air quality are not exactly the same thing, the latter being somewhat ill-defined. A better title is probably "potted plants do not make good air filters", but I guess that doesn't sound as exciting.