Hey,
We have 5 units at our service, 3 are staffed at a time. We have a schedule for cleaning them, where we take EVERYTHING out of the back and cab, spray and wipe with our antiseptics, and take it to wash in winter, or handwash in summer. Our manager likes the unit that's to be washed, to be washed, regardless of weather. During the winter we use the wax spray at the carwash, but the units are usually waxed by hand twice a year, just before and just after winter. We don't go as far as to polish rims and tires and chrome every time, but sometimes on a slow day, every month or so, they might get some extra attention. The expiration dates are also checked while the unit is being cleaned. We've got a pretty solid system going and it works very well, but most people covet Tuesdays and Thursdays, when there is no clean to be done! Other than that, after a call, the typical stretcher, floor, bench, airway chair, and front end wipe is done.