I had read the various comments on the product and was afraid the noise is really annoying. on that everything is relative and subjective, but I think it is very content especially with the silent mode. This is akin to a no more PC fan anyway and turn the qq hours a day is enough, no need to leave it overnight so. (I used the in several rooms, one of 30m2) It warms the air a little bit, but in my case the humidity is especially troublesome in the winter so I win. Otherwise, the device is really very effective and we end up having to quickly REMPI the tank. I find relatively attractive, it is easy to move around with its wheels and its handle. I recommend.
