Function |
Recirculates falling cool air within the fridge to evenly cool throughout. Recirculates cold air rather than creates cold air. | Creates airflow to clear stagnant warm air behind the fridge, making it much easier for the absorption system to work and for the fridge to cool inside. | Recirculates falling cool air within the fridge to evenly cool throughout. Recirculates cold air rather than creates cold air. | Blows air over the evaporator fins in the top back of the fridge. This prevents ice buildup and creates large amounts of cool air in the fridge that starts to circulate. |
Placement |
Often on the bottom shelf, but movable throughout the fridge. | Fixed attachment to exhaust vent in chimney area behind fridge. | Often on the bottom shelf, but movable throughout the fridge. | Fixed attachment to evaporator fins in fridge. |