3 in 1 function, air humidifier, ultrasonic aromatherapy and air purifier. Ultrasonic humidifier anion cold fog sweet. Release a large number of negative ion humidifier atomization process, can effectively remove dust floating in the air, smoke, formaldehyde, bacteria can be super delicate fragrance spray evenly, make sure you are able to absorb each hydration plant essential oil absorption of nutrition. 2 on spray pattern: continuously spit or stop for 5 seconds. Large capacity 300 ml, USB charging, cup design, suitable for automobile, office, family use. Can only open the cover if you need to add water to prevent water splashing in the drive. A key to start or stop, let you enjoy the spa any time and any place.