WiZ supports two different fan modes: summer and winter. Summer and Winter mode is basically the ability to change the direction the fan blades spin.

Summer mode

In summer mode, the fan creates a downward draft for a direct, cooling breeze.

Winter mode

In winter mode, the fan creates an upward draft to circulate the air around the room. 

Note that the amount of speeds that can be selected in each mode depends on your fan model.