Circulate air for a qiuck cool with the Deluxe Fridge Cool. This small fan will keep your refrigerator evenly cooling. Initial cool-down time is cut down by 50% with this battery-powered RV refrigerator fan. These fans will help to keep your food from spoiling by circulating air evenly at both the top and bottom of your unit. They can run continuously for 30 days on 2 “D” alkaline batteries (not included).This Deluxe Fridge Cool model features a convenient on/off switch for when it is not in use. The compact size of 3-1/2" x 2-1/2" (at base) makes it easy to fit into any refrigerator.