Toyota Prius c 2014 Owner's Manual page 244

3-1. Using the air conditioning system and defogger
Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (the indicator is off) and
recirculated air mode (the indicator is on) each time the button is pressed.
Adjusting the position of and opening and closing the air outlets
Center outlets
Right and left side outlets
242
Direct air flow to the left or right,
up or down.
Direct air flow to the left or right,
up or down.