Range hood and noise reduction method thereof

The invention discloses a range hood and a noise reduction method thereof. The noise reduction method of the range hood comprises the steps that noise parameters of the range hood are obtained based on a noise detection sensor; when it is determined that the range hood has operation noise based on the noise parameters, vibration parameters of the range hood are obtained in real time, and vibration parameters of an air outlet pipe communicating with an air outlet of the range hood are obtained in real time; and according to the vibration parameters of the range hood and/or the vibration parameters of the air outlet pipe, the operation state of the range hood is controlled. By adopting the technical scheme, the running state of the range hood can be controlled according to the noise source, so that the running noise of the range hood is reduced from the source, and the use experience of a user is improved. 本发明公开一种烟机及其降噪方法，该烟机的降噪方法包括：基于噪声检测传感器获取烟机的噪声参数；在基于噪声参数确定烟机存在运行噪声时，实时获取烟机的振动参数，以及实时获取与烟机的出风口连通的出风管的振动参数；根据烟机