The cleaning standards for oil fume pipes are as follows: after cleaning the fume hood flue, more than 91% of the original inner wall of the flue can be seen, and there is no lump and stubborn oil stain; the surface of the stove is clean and tidy without oil stain; more than 91% of the surface of the fan impeller can be seen with primer; there is no precipitated oil stain at the bottom of the motor; and there is no oil stain and stubborn oil stain outside the pipeline. The above is Xiaobian's introduction to the cleaning methods and key cleaning places of the oil fume pipeline, hoping to help those who want to clean the oil fume pipeline.

in the process of removing the oil fume from the oil fume pipeline, the oil fume is accumulated slowly, and the time is generally about half a year. For the flue, if it needs to be cleaned, it will take half a year. Therefore, we can clean the oil fume pipeline within half a year, which is also the standard for cleaning the oil fume pipeline.