POWERFUL PERFORMANCE: With humidification up to 4x faster than other brands, a large 6-L tank, and up to 60 hours of operation, the Classic 300S provides relief in rooms as large as 505 ft². Experience alleviation of congestion, and dry skin | AUTOMATIC CONVENIENCE: With the smart humidity sensor, you don't have to worry about over-humidification anymore. Auto Mode adjusts mist levels and balances your home?s humidity automatically. Just fill the tank, turn on the humidifier, and enjoy | WiFi SMART HUMIDIFIER: Try the Levoit Classic 300S Smart Ultrasonic Humidifier powered by Vesync App. You'll be able to control it on your phone. It also works with Alexa and Google Assistance. Experience more smart features | CUSTOMIZED HUMIDITY: Dry air can affect your home and health. Wood floors, wallpaper, furniture and houseplants can all can be damaged by dry air. With the VeSync App, you can customize humidity levels to find the right humidity for your home. | JUST SAY THE WORD: Already in bed and don't want to get up. Have your hands full with a newborn. Connect your humidifier to third-party voice assistants for hands-free control. | BEST HUMIDIFIER FOR BEDROOMS: Feautring BPA-free materials and quiet operation, the Classic 300S is perfect for bedrooms and nurseries. With noise levels that never exceed 30dB, the Classic 300S is quieter than many other leading humidifiers. | SATISFACTION GUARANTEED: Experiencing issues, Our California-based Customer Support Team is here to help. If your product is defective, don?t worry about shipping it back. We?ll send you a replacement right away | NOTE: Search Asin " B09ZY9N6PD" to find our Levoit Classic300S Humidifier Filters when you need a replacement | NOTE: To ensure the high-quality service and the best user experience of smart products, our smart products have completed the optimization of the "one-click cancel subscription service" | NOTE: In order to extend the service life of the product and a better experience, please do not fill past the tank?s max water line