Features: Humidifier use a of atomize the water; to maintain high humidity room; and bring a distinct variety of pure unfavorable oxygen ions; cardiovascular System and the human body's metabolism performs a retaining role; This paragraph humidifier fog ; High-performance water atomization; And the operating state of silence; Do no longer impression your existence everytime you use work; Beautiful transportable is the leader in the humidifier; Can carry; ship family; ship peers the . Description: Product Name: Donut humidifier Material: ABS Shape: round color: White Size: 50x50x20mm Power supply: USB Function: negative ions Tank capacity: 1 liter or less The type of fog mouth: 1 Mode of operation: mechanical Timing function: No timing Water shortage energy protection: help Line length: 1 meters Suitable for: relatives Note: It is usually recommended to apply a cup with a cup. Because the cup is small, the stress of the water will difficult for the water to go into the water inlet the humidifier. This will impression the fogging effect. Package Contents: 1x humidifier Only the above equipment content, diversified item should not included. Note: Light and diverse reveals can cause the colour of the article in the picture just a little assorted from the real thing. The dimension allowed error is +/- 1-3cm.