well just a reminder, ionizer will produce a by-product...can check it out at google. ask when shopping for a air purifier, most important thing is to check the clean air delivery rate and not how much air it can intake. as for plasma cluster if not mistaken it is using plasma to ionized water correct? cant remember well about it already.

anyway there is this technology which ionized water particles and spray it to the air, then it will attract the containminents and particles in the air into the water. But one thing about this technology is that what will happen to the contaiminents and particle when the water droplets dry out? well i think you can figure it out ^^