Feature: 1. Regular appearance, plump, white color, elasticity, not easy to drip. 2. Uniform porosity distribution, super water absorption, large water storage capacity. 3. Stable volatility, non‑water‑soluble, non‑sticky, and maintain the consistency of water volatilization rate. 4. It can be matched with various types of perfumes, liquid medicines and other water solvents to filter and store water. 5. Suitable for humidifiers, perfume volatilizers, atomizers, aroma diffusers, etc. Specification: Condition:100% Item Type: Humidifier Cotton Swab Size: Approx. 5 x 100mm / 0.2 x 3.9in Material: Fiber Cotton Application: Humidifier cotton swab, perfume volatilization, atomizer, aroma diffuser... Package List: 30 xHumidifier Cotton Swab Note: It is recommended to replace it every 2‑3 months or when the amount of fog is low.