1.Material: Polyster and aluminum mesh 2.Odor decomposing rate > 96%. 3.Bactericidal rate> 99%. 4.Certificate: RoHS Materil:Photocatalyst Filt Screen is ... , ammonia, nicotinism, etc.Odor decomposing rate> 96%.Bactericidal rate>99%.Certificate: RoHSSize, material and the air flow rate of filter could be adjusted according ...