This three-layer widened filter with 10 times area can more effectively purifies PM 2.5, hair, smog, dust, formaldehyde and odor than the one-layer.Filter life: 2-3 months.colour:whiteMaterial:ABS+HEPAsize:Product Size: 7cm x 7 cm x 9 cmPackage Contents:1 x HEPA filterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
