Stable performance: stable and performance, this filter keeps the humidifier with better performance.Super hygroscopicity: This filter has super hygroscopicity to prevent the humidifier from being damaged by over-humidity.Easy to install: easy to install and replace, directly replace damaged or broken.Suitable for: specially designed for HU4801 HU4802 HU4803 HU4811 HU4813 humidifiers.Reduce pollution: filter out the fine dust produced in the cleaning process, reduce secondary pollution to the air.Specification:Status: Project Type: FilterSize: Approximately 15 x 13 cm/5.9 x 5.1 inchesWeight: Approximately 62 grams / 2.2 ouncesColour: whiteMaterial: plasticPackage Contents:1 x filterOnly the above package content, other products are not included.Note: Light reflection 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.