three function:humidification、aroma diffusion and air purification.<br />small size and it is portable.<br />remove unfavorable odors &food smells.<br />removable tank and easy refilling .<br />powered via USB port on your computer.<br />low power consumption.<br />a healthy lifestyle gadget、 it is great for your home 、office and car.<br />floating in the water、 donut-shaped<br />standby mode、 touch switch