One way is to put down an absorbent powder that attracts the dirt into the granules.
This is added into the cleanser and masks pet smells in the home. It is to employ a cleaning company to perform the task for use in your office. http://Metalrus.ru/forum/go.php?url=aHR0cHM6Ly93d3cuRnR3b3J0aGNhcnBldGNsZWFuaW5nLmNvbS8