NoteWe recommend using purified or distilled water to fill the humidifier. Avoid using water with high mineral content. LEVOIT You Can TrustIf you have any questions or concerns about the product, you can contact the customer support team according to the contact information mentioned in the instruction manual, we will solve it for you as soon as possible and provide thoughtful service. Enjoy the Aromatic Atmosphere2-in-1 humidifier aroma diffuser product, put a few drops of your favorite essential oil on the aromatherapy pad, it will create a relaxing atmosphere, and heal your heart while enjoying the comfortable humidity. Custom HumidityDry air can cause damage to furniture, wood floors, plants, etc. indoors, with the VeSync app, you can customize the humidity level to find the right humidity for your home. Convenient Auto ModeOver humidificationWasting energyIt can detect the humidity of the surrounding environment through the built-in high-precision smart sensor and generate the appropriate humidity. When the environment reaches the required humidity condition, it will automatically shut down. Quiet Sleep ModeWith a noise level never exceeding 30dB, the Classic 300S allows you and your family to breathe better, feel better and sleep better. Top-Fill Design Large CapacityWorried about water leakageDifficult to cleanChoose the Classic 300S humidifier, which features excellent top fill and a large opening for easy cleaning. 6L large capacity design humidifies a bedroom or living room of 20-47 m for up to 60 hours (at the lowest speed). Smart APP Voice ControlConnect the ultrasonic humidifier to the free VeSync app, schedule a timer, and monitor the humidity. It also works with Alexa and Google Assist for hands-free control.