I put it in front of one room and my dog ​​cries and runs to the other. I tried it late at night and I was scared myself from the noise (really the nearby neighbors of the apartment building would wake up). I got it so that my dog ​​would not need to be sedated (which anyway would not easily sit still to be groomed), but it is noisy beyond belief! In all the other questions, I gave the worst rating because I will never know if it gets clogged, if it holds, etc... I would give it to anyone who wants it... because it is useless to me... but I don't think there will be someone who loves animals and finds it useful... By the way, I have bought a hair clipper for myself from the same company and it is really very good (so 2 stars instead of 1)... apparently they did not take into account that a dog would not sit still to be groomed when the machine makes so much noise.