Humidifier Sticks Cotton Filter Refill Replacement 10Pcs Mini USB Sponge Stick Portable Wicks for Air

【Insoluble in water】 --- This cotton is water-insoluble, non-sticky and keeps the speed of the volatile agent constant. 【Effective filtration】 --- An effective foam filter allows pure water vapor to flow and improves breathability. 【Cotton Material】 --- This humidifier cotton is filtered with cotton material which has good absorption and good quality. 【Good absorption】 --- This humidifier cotton is tightly distributed, has high water absorption, water storage capacity and volatile stability. 【Multifunction】 --- This special cotton swab of cotton moisturizer, good water absorption, no yellowing, no burrs. It can also be used as a perfume pen.