USB Powered Air Mist Humidifier

Pros: Works for my tiny room.
Simple to unpack and get it working, no instruction really needed.

Cons: Haven't found any other than price.
$20 USD for a fan is a lot.
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Other: $20 USD is a bit much for a water+fan build but you probably couldn't find anything else this small. So, if you need to humidify your room, small one, then it'll be worth your money.

Pros: - Its very cute! - Easy to use. - My room gets super dry and this really helps. - So small and looks great on a desk. - Basically works just as its meant to.

Cons: - It'd be nice if it came with an extra sponge. - There's no mist haha. - The lid comes off pretty easily so be careful not to knock it over, even a fall from a short height can take the lid off.

Other: Make sure you use this right and don't let mold grow. Definitely one of my favorite purchases from DX.

Pros: It's small enough to leave over my desk. The USB also is a good way to save wall socket but I use with a 5V adapter.
It's also very quiet compared to piezo ones.

Cons: There's no mist. It's sad when you turn it on and there's no visual mist to check if the little "robot" is really umidifying.

Other: If you have childrens or breath problems in the dry season, it's a good friend to have near. It works very well and it's nice too.