Mini USB Donut Humidifier Air Purifier
Portable mini humidifier, the smallest humidifier in the world.
Increases humidity of air and reduces dust and bacteria.
Moisturizing your skin, gives you the feelings that you are taking a SPA.
Super mini size, light weight, no water capacity limited, just throw it into a cup, vase, bottle, pot and any other container you like, convenient and simple to use.
Support waterless auto off function, USB plug power supply, low DC 5V input voltage, safe and reliable. It can be easily powered by car charger, PC, notebook, power bank, etc.
Internal diameter: 1.6cm/0.63"
External diameter: 5cm/1.97"
Please note: The round hole in the middle can't get water, otherwise the product can't work.
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