VEHICLE AIR CONDITIONING SYSTEM

A vehicle air conditioning system includes: a humidity controlling device ; and a duct having the humidity controlling device provided therein and allowing an air from a vehicle interior or a vehicle exterior of a vehicle to flow therethrough, wherein an end face of the humidity controlling device includes: a flow blocking portion disposed in a band shape around an outer periphery of the end face to block the flow of the air ; and a flow permitting portion disposed on an inner side of the flow blocking portion to permit the flow of the air , and wherein the flow blocking portion has a maximum width W of 10 mm or less, when the end face of the humidity controlling device in the duct is viewed from a downstream side in a flow direction of the air