Final Cleaning is the last phase. This happens several days after the second phase, for the reason that dust and dirt may still settle; with this, the cleaning crew will still have time to pay more attention to the final clearing of dust. More than usual, this phase takes only a short time because the usual things that are being cleared on this point are smudges, fingerprints and other imperfections from the areas that were cleaned on the earlier phases.

This kind of cleaning is done to the whole facility from top to bottom; it doesn’t just simply means sweeping of floor