A method for treating a consumer article wherein a treating chemistry is activated or deactivated by the introduction of steam. The first side casing includes a first connecting portion formed thereon and the second side casing includes a second connecting portion formed thereon. The base has a simple structure that is easy to manufacture, and the heat dissipation column of the base does not affect the overall size of the HDD and can effectively dissipate the heat generated by the IC during the operation of the HDD.