General description LEVOIT humidifier replacement filters are designed to enhance the performance of your humidifier, ensuring healthier air quality in your home. These filters are compatible with various models, including the Levoit Ultrasound Series LV600S, Dual 200S, Dual 150, Classic 300, Classic 300S, and LV450S (Oasis Mist). Technical specifications Pack of 10 filters Compatible with standard humidifiers Filter lifespan: typically lasts up to a month at 100%, depending on water hardness Usage Using LEVOIT humidifier replacement filters helps maintain optimal humidity levels, keeping the air in your home within a healthy range and improving breathing comfort.