SPAL high-performance fans and blowers may be world beating and found all over most makes of buses and coaches performing various jobs but because they are under cover, they are the unseen heroes keeping passengers comfortable, making sure the driver can see out of the windscreen and cooling the engine so that it runs efficiently.  

To explain the role of fans and blowers, SPAL Automotive MD Matthew Morris visited the busy depot at Newport Bus in Wales to take viewers on a quick tour of an average bus to show which part goes where and what it does.