The lowly electric fan, our constant companion in the hot summer days and the hot, humid nights.  Even in our offices we would sneak in small, portable fans for those times when we have to work overtime and the building’s airconditioning has been turned off.  For its simple yet effective design – rotating blades, swiveling head, selectable speed – we thought the furthest innovation this appliance can go is the ice compartment.
It was definitely a surprise to see it still can do an evolutionary leap.  In the shopping mall we …