... and awakes the brain,it is especially good for students to enhance their study efficiency.5.Improves ... .Area:30m2-70m2Purification Technology:Nano silver photocatalyst anionicFunction air :Bactericidal disinfrction,in addition to smell ,clean ... Air(10W)Size:400*360*145(mm)Weight:8kgOperation method:Quiet,Powerful air (with aremotecontrol device) air purifier,air freshener,car air purifier,mini air ...