High EfficientNon-water soluble, non-stick foam filter will allow a pure stream of water vapor to freshen the air, ensuring your ability to breathe more comfortably . Wall mounted soap dispensers.Humidifier stickMade of filter cotton, porosity distribution, super strong absorbent, water storage capacity, volatile stability, help your humidifier work better.Change the cotton stickWhen you find that the diffuser / humidifier produces less vapor or even stops working, and the machine becomes increasingly hot, try replacing the diffuser wick without worrying about the life of the humidifier. Once every week or two.SuggestionFor best performance, we advise the user to soak a humidifier stick completely before inserting it into the humidifier and turning it on.Appropriate sizeThe sticks compatible filter cotton for USB water bottle caps humidifier, can be sheared into shorter ones for your own diffuser with the same size.Note: The data are all manual measurement, please Please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received.