An inflating/deflating device includes a fan unit disposed inside a main
housing. A release valve assembly is connected to a deflating port of the
main housing for fluid communication with a first air passage of the fan
unit. An inlet valve assembly is connected to an inflating port of the
main housing for fluid communication with a second air passage of the fan
unit. A control unit is provided to control the release and inlet valve
assemblies. The control unit is operable to switch a first or a second
actuating position. The control unit actuates the fan unit and the inlet
valve assembly to perform an inflating mode in the first actuating
position, and actuates the fan unit and the release valve assembly to
perform a deflating mode in the second actuating position.