Enjoy Hydrogen Humidifier Unlike normal humidifier, it sterilizes and produces -OH in water which supplies clean humidification in your room. Also, the produce assures the clean humidification with antibacteria filter It also has a natural vaporization system that spreads out invisible water molecules in air, which spreads out 340cc/h in your room Whenever you sleep or do something, the product provides comfortable condition with 23db(Same as rustling leaves).