New version mini car air humidifier is 100% user-friendly and made of premium environment-friendly material; You can stick or clip it in car, home and breath more fresh air. Ideal for traveling, reading, playing. Auto power off function and protection against dry heating features can make it absolutely safe. This humidifier have a spare negative ions particles so you can use it for up to 2 years. Specification: -Output power: 1.5W -Input: 5V/350MA -Input interface: Micro -Battery Capacity: 900mAh -Battery type: Polymer lithium batteries -Water tank capacity: 40ml -Aerosolized amount: 1.2-1.8ml/min - Aerosolized particles: 0.25mu;m -Product size: 122*52*30mm -Executive standard: GB4706.1-2005