Lots of things are very different in a commercial kitchen when compared to a domestic environment. But, making sure you clean the filters on your tumble dryer is just the same no matter where you are. The dryer will be more effective, efficient and safer if you clean the filter regularly.
We have all seen the problems encountered with lint on domestic appliances!!
Well because commercial appliances are that much bigger, the risks are commensurate too, so maintenance by yourselves, as well as an engineer, is a wise decision.