1. Choose a suitable site: ensure that the installation location of the range hood is well ventilated and away from heat sources and flammable materials.

2. Check the flue: make sure that the flue is unobstructed and free from distortion, which can be checked by observing the site.

3. Cleaning the installation surface: After lifting the range hood to the designated position, clean the outer surface of the range hood and the inside of the flue to ensure that there is no oil stain and sundries.