Features:* * Made of eco-friendly materials, * air filter, can replace the filter for humidifier, return to clean air * Healthier lifestyle: filters prevent the release of limestone, bacteria and fungi from the air * Safe and clean filter for humidifier * PreservationClean treatment helps prevent growth and migrationMolds, fungi and bacteria on the filter, removal of minerals and impurities from water. A replacement filter is ideal to replace natural cool moisture humidifiers. Greatly helps to remove Minerals and impurities* EasyTo install so you can restore clean as soon as possible. Simply remove the old filter and put this new filter in its place* To keep the room in a fresh environment, it is recommended to replace the filter every 3 to 6 monthsSpecifications:* ThicknessSs: about 30mm* Weight: about 90 grams/pc* Fit model: for Philips HU4102 HU4801/HU4802/HU4803 humidifier filters* Size: 235*130*30MM (Approx)* Color: as pictures showWarm Tips: Before buying, check the model, appearance and size. Package Contents:3*FiltersNote:1.,The actual colors of the item may be slightly different from the pictures displayed on website caused by many factors such as brightness of your monitor and light brightness.2.Please allow slight manual measurement deviation for the data.