Feature: 1. Compatible for USB water bottle caps humidifier. 2. Made of filter cotton material , good absorbed and quarity. 3. Effective foam filter will enable a pure stream of water steam to freshen the air, which will ensure your ability to breathe more comfortably. 4. Porosity distribution; absorbent particularly strong, water storage capacity, volatile stability. 5. Not water-soluble, non-stick blocking, to maintain the consistency of volatile agent speed. Specification: Description: The filter cotton sticks is compatible for all humidifier diffuser. You can sheare in shorter you need. Effective foam filter will enable a pure stream of water steam to freshen the air, which will ensure your ability to breathe more comfortably. Features: Compatible for USB water bottle caps humidifier. Made of filter cotton material , good absorbed and quarity. Effective foam filter will enable a pure stream of water steam to freshen the air, which will ensure your ability to breathe more
