Before that, there was fan 1plus, so there is something to compare with. This one is much louder. And it makes some strange noises. The stick on which the filter sponge is put on constantly falls off and just dangles in the glass, maybe because of this it makes incomprehensible sounds. Now it’s loud, then it’s quiet, then it generally seems as if the air is being jarred somewhere. I'll be watching for a couple more days. If the causes of the noise cannot be eliminated, I will issue a refund.
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