I've experienced two kinds of sharp plasmacluster.

One a 5-year old high-end model purifier that can detect air quality the instant I enter house after smoking, and another current model FUA28E ionizer. The former worked wonders in 30 mins and outputted really clean air despite its age; far beyond my expectation. But the latter was capable enough to remove haze smell, in my living room! Albeit it takes about a day to accomplish.

I regretted after selling the purifier.