Available in two sizes, these replacement sticks suit for multiple USB powered mists humidifiers, providing a solution for needs Make from cotton materials, these filter refill sticks are easily to install and replace, offering excellent breathability and durability for long lasted Perfect for use in various settings such as homes, offices, and travel, these portable humidifier wicks ensures freshness and moist air wherever you go, enhancing your living and working conditions Enhances your air with our 40 pieces humidifier sticks, designed to efficiently absorb and release, ensuring a consistent humidity levels for comfort in any environment Ideal for families, workers, students, and individuals with respiratory sensitivities, these sticks caters to anyone seeking to maintain best indoor humidity levels