This 4L humidifier provides smart humidity control with a built-in hygrometer and auto-humidistat for consistent comfort. The 22dB operation and sleep mode create a quiet environment, while 250ml/h mist output, three mist levels, and a 360degree(s) nozzle deliver flexible humidification. The top-fill design and washable filter simplify maintenance, while 7-color mood lighting adds a relaxing ambiance. Fcc and Etl certification provides added confidence for safe everyday use.