Multi-layer composite media with superior efficiency Easy installation Long life High efficiency in removing particles such as dust, pollen, PM2.5, pets and harmful gases such as formaldehyde, TVOC, ordor, etc. Efficiency: Formaldehyde removal: more than 99% PM2.5 removal (less than or equal to): more than 99.7% Benzene removal: more than 99% TVOC removal: more than 99% It is recommended to replace regularly in 3-6 months Suitable models: AC2880 AC2891 AC2878 AC2886 AC2888 AC2890 AC2887 AC2889 AC3822 Color: as shown Material: composite material Size: 370 x 284 x 60mm Package Contents: 1 x HEPA Filter Only 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 +/- 1-3 cm.