Poor design, OK function, will not last.

2 stars because it functions well but has a poor design. The design allows water moisture to build up around the electronics underneath the water tank. The DC Jack rusted out in 2 months and stopped working, so I had to take the unit apart and sand off the rust. I don't know where the leak is coming from but this should be an easily fixable design flaw. I am not overfilling the tank or submerging the unit in water. This diffuser otherwise does what it's supposed to do, except that the hi/low/intermittent mist level button doesn't work. It does hi/hi/off. That's a mistake on the programming chip. Also, when I disassembled the unit, I noticed that the chassis screws were over-torqued and the plastic threads destroyed and then attempts were make to ghetto-fix it at the assembly line. This is the bottom rung of Chinese production so don't expect a lasting product or a well-finished design process. I would not buy again, and it looks like all of the diffusers on Amazon come from similar Chinese production.

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