Had my P125 since Oct 2007 invisibly and unheard cleaning the air, used constantly without trouble.
Cleans the air in the whole of my 1 bed flat, the thing I noticed first is the difference in smell of my flat when arriving home, days before the p125 my flat smelt of my pet, cooking and a hard to put a name to it but it just smelt, now it smells of nothing. This draws 50W an hour but well worth it. If it ever stopped working I would buy again.
I no longer have itchy eyes or coughs, which used to annoy me as I had no trouble with this during my day at work.
Found out this was down to a mould growth.
Fully recommended, even though the price is high.
Author reviewed in Nov 2010