hotel kitchen noise reduction measures: first, consider the treatment from the source of kitchen equipment, and eliminate some noise sources at the source as far as possible, such as making noise enclosures for compressors, heat pumps, and mufflers for exhaust fans. At the same time, consider doing vibration isolation and vibration reduction for these equipment. After these noise isolation and noise reduction measures are implemented, if they are not satisfactory, then consider the second measure. Second, the second measure is to deal with the noise from the receiving point, mainly by installing sound-proof doors and windows on the doors and windows at the receiving point, so as to keep the external noise out of the doors and windows, and after closing the doors and windows, the indoor quiet environment can be fully maintained.