Supermarket is a place where human traffic is heavy, and so always gets dusty and dirty. For a clean and comfortable environment, daily cleaning and regularly deep cleaning are equally important. MasterClean provides a complete cleaning solution for supermarkets. The customer of this case study is a locally chained supermarket brand. We machine-washed the hard floor, dust-cleaned and wipe-cleaned high ground areas, wipe-cleaned shop front and gates, etc. For not affecting the normal operation of the customer, the cleaning service was completed before the opening hours of the supermarket.