Both the bathroom (2.7 square meters) and the toilet (1.5 square meters) have had it installed. It seemed to me that any standard hood would be able to handle it given how small the area is, so I looked into ones that were less noisy. But I was completely mistaken, since this extract is not very potent at all. If I had to decide right now, I would no longer pay attention to the noise if only the stuffiness could be alleviated in a satisfactory manner. Very weak. I don't like that the blades can't be readily washed because you have to pull out and disassemble everything first. That's another thing I don't like about it.