Question

When an employee does the work necessary to remove physical dirt or food residue from a surface, that is referred to as?

Answer 1

They are referred to as a janitor or a cleaning service. They are the ones responsible of keeping a place in good condition and to make everything neat and dirt free as possible. It could be described above as removing physical dirt or food from the surface is their job description as they make sure that the place is clean, neat and dirt free.