Car Air Humidifier - Nanum 50ML Car Ultrasonic Air Humidifier Purifier Essential Oil Aroma Mist Diffuser blue Package included: 1x Humidifier; 1x Sponge (spare part); 1x User manual Using ultrasonic atomization technology, with 113 KHZ frequency make water into 6 um ultra small water droplets, and essential oils more evenly spread, out of the natural essential oil fragrance, volatile, protect wet air, make skin more comfortable. Release a large number of negative ion during the atomization process, excellent dust precipitation, At the same time, effectively remove more harmful material such as formaldehyde, carbon monoxide, bacteria, purify air, reduce disease Sterile humidification, eliminate fatigue, bring happy mood; With 2 hours Automatic power-off protection design,avoid parching without water; Able to rotate 180 , for more comprehensive Humidification