【Cotton swab size】0.31" (diameter) x 3.94" (length). Mini portable humidifier 500ml perfect cotton swabs. If necessary, you can adapt it to your other humidifier. 【Advantages】 The filter rod is made of high quality cotton. Strong water absorption, to ensure the normal work of humidification. Perfect filter replacement, the original filter has run out, don’t worry about the life of the humidifier. 【Replacement】We recommend that customers replace the filter after 3 months of use. usage (depending on usage and water quality). 【How to use】Please soak the cotton swab in water for 1 minute before use to make it fully wet. 【WHAT YOU WILL GET】 10pcs Humidifier Cotton Swabs.
