Provided is an air conditioning system for a railway vehicle that is of a roof installation type. The air conditioning system includes a heat exchanger through which at least air inside the railway vehicle passes, and an ultraviolet-ray irradiation device....

1. A blowing device (5), comprising: an air flow path (2) with an outlet (1) from which to inject an air stream; an electrostatic atomizer (3), arranged outside the air flow path (2), for generating charged water particles by electrostatic atomization, the...