N680 Anion air purifier

1.High negative ion density, 2 million pcs/cm3;

 Anion is praised as "airborne vitamin:, environment with high anion density can
 promote metabolism, enhance immunity, and can make you feel as if you stay in
 refreshment of waterfall and forest!
2.Air quality speed: auto High/Medium/Low/Silent 
3.Convenient Operation:Intelligent Mode.  

4 Usage: Hotle,Home,Smoking Rome, Hospital, Setting Room.