About This Product Efficient Humidification: Our cordless humidifier features a 4-liter water tank that provides over 12 hours of consistent humidity without frequent refills. The large capacity makes it easy and convenient, allowing you to enjoy effortless humidification all day long. Enhanced Mist Coverage: Our cordless humidifier uses dual-mist technology to spray refreshing mist in both directions. The result? Greater coverage for improved humidification and fresher air. Fragrance: This cordless humidifier can be filled with aromatherapy essential oils to scent the air, while operating silently to create a soothing and relaxing atmosphere. Auto-Off: This cordless humidifier features an automatic shutoff function to prevent leakage and dry-burning when it is low on water or tilted. This gives you peace of mind. Wide Compatibility: Our cordless humidifier provides optimal humidity in any environment.