1,Air Flow:100m3/h 2.Area Coverage:5-20m2 3.Power Consumption:5-15w 4.Air cleaning efficiency:92%-98%(2hours) 5.Formaldehyede Absorbing Efficiency:83%(2hours) 6.Particulate Purifiying efficiency:>=0.1um 91% 7.Size:250*170*240(mm) 8.Material:metalwork with first grade car paint. 1pcs/1box,4boxes/1 carton.