[5L Large Capacity Humidifier]: Large capacity allows up to 35 hours of humidification. Cool mist humidifier helps relieve symptoms such as stuffy nose, dry skin and cough. [Top fill, bottom essential oil cartridge]:14.7 opening CM for easy filling and cleaning. The essential oil box at the bottom can add your favorite aromatherapy and enjoy a pleasant aroma experience. [Note: Please do not add essential oils to the water tank] [As low as 28dB, 360 rotating nozzle]: The humidifier reduces noise levels to 28dB and uses a stepless adjustment knob to control the mist to achieve quiet and versatile humidification. [Auto-off protection]: When the water runs out, it will automatically stop working and low level indicator glows red to warn and protect the machine for longer life. Cool Mist Humidifier The humidifiers for bedroom, large room, office and baby's room, humidify the air with a sound level of no more than 28dB, which creates a comfortable environment for your family to feel good. Power Source: 120V and 220V Power: 25W Capacity: 5.0L/1.32Gallon Fog Output: 350mL/h ( MAX) Coverage: up to 30m How do I clean my humidifier? We suggest cleaning the humidifier every the three days. It may seem like a lot of work, but it's worth it to avoid the dreaded humidifier lung. 1. Unplug and disassemble your humidifier. 2. Fill the reservoir with water as you normally would, but add 2 tablespoons of distilled white vinegar (powdered citric acid, or a similar weak acid, can also be used). 3. Let this mixture sit in the tank for 30 minutes. 4. Empty the humidifier and use a brush and cloth to clean areas of heavy buildup. 5. Rinse all parts and let them dry for 30-60 minutes before you can use the humidifier again.