Abstract: In addition to the performances of the range hood itself, the structure type of the fire proof check valve in the public flue, the installation way of the specific pipe, the proportion of working range hoods and switch on the floor have a great impact on the suction and noise of the range hood in high-rise residential building kitchens; By analysis and research on the influencing factors, summarized the methods of improving its suction and noise reduction under the same condition of the range hood, provided an effective guide for the selection and installation of the range hood.

Key words: Range hood, Suction and noise, Fire proof check valve, Specific pipe, Public flue