Sticks Refill Sticks Humidifier Core Cotton Cotton Humidifier Sticks Filter 5PCS Tools & Home Improvement Air Tools Oil Lubricator4. Suitable for most humidifiers1. Good volatility5. Easy to replace regularlyEffective foam filter will enable a pure stream of water steam to freshen the air, which will ensure your ability to breathe more comfortablySponge Filter sticks should be replaced every 2 months at minimum, If you regularly use oils, need replace 1 months.3. Spray is more delicate2. Strong water absorption5 x Humidifier FilterTo see a better performance,we user to soak it to be wet completely before inserting to the humidifier and turning it on.Compatible for all humidifier diffuser.More FeaturesTo see a better performance,we user to soak a filter stick to be wet completely before inserting to the humidifier and turning it on.Specification: Material: Cotton Color: White Size: 9.5X85mmPorosity distribution; Absorbent particularly strong, water storage capacity, Not water-soluble, non-stick blocking, to maintain the consistency of agent speed.Support various types of perfume (EO), liquid and other water .