Maintaining one of the Busiest Hospitals in the Country USC Medical Center in East Los Angeles, CA, is one of the nation's largest—and busiest—public hospitals. In one year, the hospital treats 800,000 patients, delivers 10,000 babies, has 250,000 emergency room visits—and employs 9,000 people. The hospital also cares for approximately 5,000 outpatient visitors per day. "You can imagine how busy our housekeeping department is in a facility this large," says Bill Walton, the center's director of environmental services. "All the concerns about cleaning, controlling the spread of infection, and cross-contamination are multiplied a thousand-fold here." Walton was looking for a more thorough, faster way to clean the hospital's common-area restrooms, which must be cleaned three to four times p

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