<p>Water tank capacity: 3L large capacity</p><p>Power supply: USB interface</p><p>Safety: water shortage power off to prevent dry burning</p><p>Usage method: First Gear: Press the switch, enter the first gear. (3 holes spray at the same time.) Second Gear: Press switch again, enter the second gear. (The left and right holes spray, the middle hole don't spray.) Third Gear: Press switch again, enter the third gear. (3 holes alternate sprays.)</p><p>Light switch: Long press the switch to turn on the light mode, and long press the light switch to turn off the switch.</p><p>Attention: When using for the first time, it is necessary to take out the cotton swab and soak it for about 1-3 minute until it is completely wet before putting it into the humidifier for use, so that the humidifier will produce fog.</p>