In addition to keeping the Data Center tidy on a day-to-day basis, hire a professional cleaning company to periodically clean the room. No matter how diligently your employees pick up after themselves, it is inevitable for scuff marks to appear on floor panels and particles—typically dirt, dust, lint, or metal shavings—to accumulate under floor.
Among the things that a cleaning vendor can do for your Data Center are:
Wipe down servers
Remove marks from raised floor surfaces
Vacuum the room, in and out of the plenum
Test for potentially hazardous particles
Note the condition of the plenum and infrastructure components
Have realistic expectations about the cleaning vendor's scope of work. Cleaners come to your Data Center ...