With warm and cool mist settings, adjustable humidity levels, and up to 36 hours of continuous use, the Levoit Hybrid Ultrasonic Humidifier transforms your environment, creating a cozy atmosphere that’s just to your liking. Enjoy undisturbed sleep with the Display Off feature and near-silent noise levels. With a mist output of up to 500 mL/hr, the humidifier provides plenty of coverage for spaces as large as 750 sq ft­ or 70 sq m, easily handling bedrooms, living rooms, offices, and nurseries. And for extra comfort, you can add essential oils to the aroma box to spread soothing aroma throughout the house.