Sufficient quantity: you will get 40 white cotton humidifier filter wicks, each is approx. 10 cm/ 4 inch in length and 0.3 inch in diameter, enough quantity to meet most of your needs; Practical tools for office, bedroom and travelGood water absorption: the humidifier filter stick is characterized by good elasticity, even pore distribution, strong water absorption. water, good storage capacity and volatilization stabilityQuality material: the humidifier stick is made of filter cotton, insoluble in water and not easy to stick, supports the most kinds of perfumes, liquids and other waterbased solvents, helps your humidifier work betterExtend the life of the humidifier: come and replace the filter with humidifier cotton sticks, when the humidifier produces less steam or even stops working and even gets hotter, extend the life of the humidifier (usually 12 weeks to change the filter)Easy to use: the humidifier wicks are simple to remove and install, allow you to complete the installation in seconds, please soak a filter stick to make it completely wet before inserting it into the humidifier; It is recommended to use tap water and do not drip essential oils to soak (if necessary, adding a small amount of essential oil is acceptable)