Multifunctional filter: Differentiation of formaldehyde and other harmful gases. Inhibiting the growth of bacteria. Prevention filter use process produces odors.Activated carbon filter: Filtered variety of harmful gases and odors, effectively cleaning up the environment.HEPA filter: Filter small dust particles; Filter PM2.5; Anti-bacterial coating eliminates germs.Colour: as shownMaterial: plasticPackage Contents:1 * Multifunctional filter1 * Activated carbon filters1 * HEPA dust collection 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.