Function: Sterilization, disinfection, anti-mildew Filter pm2.5,dust,pollen,allergies,bacterial,and formaldehyde removing.Material: composite materialThe replacement of the spare parts on time will help your Purifier maintain the good cleaning performance.Each set of spare parts is recommended to use for six months, and then replace the new part spare.Type: Purifier PartsVersion: Enhanced EditionProduct Shape: 360-Degree Barrel FilterRecommended area:Recommended area: 28 m-49 mcolour: purpleMaterial: composite materialSize: 200x290mmPackage Contents:1 x filterOnly the above package content, other products are not included.Note: Light 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.